Quantum Griffiths phase in CePd(1-x)Rh(x) with x ~ 0.8 (2009)
Brando, M., Westerkamp, T., Deppe, M., Gegenwart, P., Geibel, C., Steglich, F.
The magnetic field dependence of the magnetisation ($M$) and the temperature dependence of the ac susceptibility ($\chi' = dM/dH$) of CePd(1-x)Rh(x) single crystals with $0.80 \leq x \leq 0.86$ are...
Quantum criticality in layered CeRhIn_{5-x}Sn_x compared with cubic CeIn$_{3-x}Sn_x (2009)
Donath, J. G., Steglich, F., Bauer, E. D., Ronning, F., Sarrao, J. L., Gegenwart, P.
We report low-temperature thermal-expansion measurements on single crystals of the {\it layered} heavy fermion system \cri ($0.3\leq x \leq 0.6$) and compare it with a previous study on the related...
Anisotropy of the low-temperature magnetostriction of Sr3Ru2O7 (2009)
Stingl, C., Perry, R. S., Maeno, Y., Gegenwart, P.
We use high-resolution capacitive dilatometry to study the low-temperature linear magnetostriction of the bilayer ruthenate Sr$_3$Ru$_2$O$_7$ as a function of magnetic field applied perpendicular to...
Quantum oscillations near a quantum critical end point in Sr3Ru2O7 (2009)
Rost, A. W., O'Farrell, E. C. T., Goh, S. K., Perry, R. S., Sutherland, M. L., ...
We report detailed investigation of quantum oscillations in Sr3Ru2O7, observed inductively (the de Haas-van Alphen effect) and thermally (the magnetocaloric effect). Working at fields from 3 T to 18...
Magnetization study on the field-induced quantum critical point in YbRh_2Si_2 (2009)
Tokiwa, Y., Geibel, C., Steglich, F., Gegenwart, P.
We study the field-induced quantum critical point (QCP) in YbRh$_2$Si$_2$ by low-temperature magnetization, $M(T)$, and magnetic Gr\"uneisen ratio, $\Gamma_{\rm mag}$, measurements and compare the...
Ferromagnetic quantum phase transition in Sr$_{1-x}$Ca$_x$RuO$_3$ thin films (2009)
Schneider, M., Moshnyaga, V., Gegenwart, P.
The ferromagnetic quantum phase transition in the perovskite ruthenate Sr$_{1-x}$Ca$_x$RuO$_3$ is studied by low-temperature magnetization and electrical resistivity measurements on thin films. The...
Growth of Sr1-xCaxRuO3 thin films by metalorganic aerosol deposition (2009)
Schneider, M., Moshnyaga, V., Gegenwart, P.
We report the growth of thin films of Sr1-xCaxRuO3 on SrTiO3 and MgO substrates by metalorganic aerosol deposition. The structure and microstructure is characterized by X-ray diffraction and...
Kondo-Cluster-Glass State near a Ferromagnetic Quantum Phase Transition (2009)
Westerkamp, T., Deppe, M., Kuechler, R., Brando, M., Geibel, C., Gegenwart, P., ...
We report on a comprehensive study of CePd$_{1-x}$Rh$_x$ $(0.6 \leq x \leq 0.95)$ poly- and single crystals close to the ferromagnetic instability by means of low-temperature ac susceptibility,...
Wu, D., Barišić, N., Drichko, N., Kaiser, S., Faridian, A., Dressel, M., ...
The magnetic, transport and optical properties of EuFe$_2$As$_2$ single crystals have been investigated parallel and perpendicular to the $ab$-plane. The anisotropy $\rho_c/\rho_{ab}\approx 8$...
Quantum oscillations in the anomalous phase in Sr3Ru2O7 (2009)
Goh, S. K., O'Farrell, E. C. T., Perry, R. S., Sutherland, M. L., Rost, A., ...
We report measurements of quantum oscillations detected in the putative nematic phase of Sr3Ru2O7. Significant improvements in sample purity allowed resolving small amplitude dHvA oscillations...
Gasparov, V. A., Jeevan, H. S., Gegenwart, P.
We report measurements of the temperature dependence of the electrical resistivity, \rho(T), and magnetic penetration depth, \lambda(T), for polycrystalline samples of Eu_0.5K_0.5Fe_2As_2 with Tc=31...
Kondo-Cluster-Glass State near a Ferromagnetic Quantum Phase Transition (2009)
Westerkamp, T., Deppe, M., Küchler, R., Brando, M., Geibel, C., Gegenwart, P., ...
Evolution of quantum criticality in CeNi9-xCuxGe4 (2009)
Peyker, L., Gold, C., Scherer, W., Donat, J. G., Gegenwart, P., ...
Evidence for a reentrant superconducting state in EuFe2As2 under pressure (2009)
Miclea, C.F., Nicklas, M., Jeevan, H.S., Kasinathan, D., Hossain, Z., Rosner, H., ...
Quantum criticality in layered CeRhIn5-xSnx compared with cubic CeIn3-xSnx (2009)
Donath, J.D., Steglich, F., Bauer, E.D., Ronning, F., Sarrao, J.L., Gegenwart, P.
Evolution of Quantum Criticality in CeNi_{9-x}Cu_xGe_4 (2008)
Peyker, L., Gold, C., Scherer, W., Donath, J. G., Gegenwart, P., ...
Crystal structure, specific heat, thermal expansion, magnetic susceptibility and electrical resistivity studies of the heavy fermion system CeNi_{9-x}Cu_xGe_4 (0
Tokiwa, Y., Radu, T., Gegenwart, P., Geibel, C., Steglich, F.
The heavy fermion compound YbRh$_2$Si$_2$ is studied by low-temperature magnetization $M(T)$ and specific-heat $C(T)$ measurements at magnetic fields close to the quantum critical point ($H_c=0.06$...
Possible re-entrant superconductivity in EuFe2As2 under pressure (2008)
Miclea, C. F., Nicklas, M., Jeevan, H. S., Kasinathan, D., Hossain, Z., Rosner, H., ...
We studied the temperature-pressure phase diagram of EuFe2As2 by measurements of the electrical resistivity. The antiferromagnetic spin-density-wave transition at T_0 associated with the FeAs-layers...
High-Temperature Superconductivity in Eu0.5K0.5Fe2As2 (2008)
Jeevan, H. S., Hossain, Z., Kasinathan, Deepa, Rosner, Helge, Geibel, C., Gegenwart, P.
Subsequent to our recent report of SDW type transition at 190 K and antiferromagnetic order below 20 K in EuFe2As2, we have studied the effect of K-doping on the SDW transition at high temperature...
Jeevan, H. S., Hossain, Z., Kasinathan, Deepa, Rosner, H., Geibel, C., Gegenwart, P.
We have grown single crystals of EuFe2As2 and investigated its electrical transport and thermodynamic properties. Electrical resistivity and specific heat measurements clearly establish the intrinsic...
Dimensional Crossover of Quantum Critical Behavior in CeCoIn5 (2008)
Donath, J. G., Steglich, F., Bauer, E. D., Sarrao, J. L., Gegenwart, P.
Unconventional quantum criticality in YbRh2Si2 (2008)
Gegenwart, P., Westerkamp, T., Krellner, C., Brando, M., Tokiwa, Y., Geibel, C., ...
Low-temperature magnetic susceptibility of Yb(Rh1-xMx)2Si2(M = Ir, Co) single crystals (2008)
Westerkamp, T., Gegenwart, P., Krellner, C., Geibel, C., Steglich, F.
High-temperature superconductivity in Eu0.5K0.5Fe2As2 (2008)
Jeevan, H. S., Hossain, Z., Kasinathan, D., Rosner, H., Geibel, C., Gegenwart, P.
Dimensional crossover of quantum critical behavior in CeCoIn$_5$ (2007)
Donath, J. G., Gegenwart, P., Steglich, F., Bauer, E. D., Sarrao, J. L.
The nature of quantum criticality in CeCoIn$_5$ is studied by low-temperature thermal expansion $\alpha(T)$. At the field-induced quantum critical point at H=5 T a crossover scale $T^\star\approx...
Multiple Energy Scales at a Quantum Critical Point (2007)
Gegenwart, P., Westerkamp, T., Krellner, C., Tokiwa, Y., Paschen, S., Geibel, C., ...
Ferromagnetic quantum criticality in the alloy CePd1-xRhx (2007)
Sereni, J. G., Westerkamp, T., Küchler, R., Caroca-Canales, N., Gegenwart, P., Geibel, C.
Pressure effect on antiferromagnetism in CeRhIn5-xSnx studied by thermal expansion (2007)
Donath, J. G., Gegenwart, P., Steglich, F., Bauer, E. D., Sarrao, J. L.
Field-dependent specific-heat of the pure and diluted 4f electron system Yb4As3 (2007)
Matysiak, R., Kamieniarz, G., Gegenwart, P., Aoki, H., Ochiai, A.
Field induced magnetic phase transition as a magnon Bose Einstein condensation (2007)
Radu, T., Tokiwa, Y., Coldea, R., Gegenwart, P., Tylczynski, Z., Steglich, F.
Field-dependent specific-heat of the pure and diluted 4f electron system Yb4As3 (2007)
Matysiak, R., Kamieniarz, G., Gegenwart, P., Aoki, H., Ochiai, A.
Quantum criticality in the cubic heavy-fermion system CeIn_{3-x}Sn_x (2006)
Kuechler, R., Gegenwart, P., Custers, J., Stockert, O., Caroca-Canales, N., Geibel, C., ...
We report a comprehensive study of CeIn$_{3-x}$Sn$_x$ $(0.55 \leq x \leq 0.8)$ single crystals close to the antiferromagnetic (AF) quantum critical point (QCP) at $x_c\approx 0.67$ by means of the...
Multiple energy scales at a quantum critical point (2006)
Gegenwart, P., Westerkamp, T., Krellner, C., Tokiwa, Y., Paschen, S., Geibel, C., ...
We report thermodynamic measurements in a magnetic-field-driven quantum critical point of a heavy fermion metal, YbRh$_2$Si$_2$. The data provide evidence for an energy scale in the equilibrium...
Quantum Criticality in doped CePd_1-xRh_x Ferromagnet (2006)
Sereni, J. G., Westerkamp, T., Kuechler, R., Caroca-Canales, N., Gegenwart, P., Geibel, C.
CePd_1-xRh_x alloys exhibit a continuous evolution from ferromagnetism (T_C= 6.5 K) at x = 0 to a mixed valence (MV) state at x = 1. We have performed a detailed investigation on the suppression of...
Quantum Criticality in the Cubic Heavy-Fermion System CeIn3-xSnx (2006)
Küchler, R., Gegenwart, P., Custers, J., Stockert, O., Caroca-Canales, N., Geibel, C., ...
Metamagnetic Quantum Criticality in Sr3Ru2O7 Studied by Thermal Expansion (2006)
Gegenwart, P., Weickert, F., Garst, M., Perry, R. S., Maeno, Y.
Low-temperature high-field magnetization of YbRh2Si2 and YbIr2Si2 under hydrostatic pressure (2006)
Tokiwa, Y., Gegenwart, P., Hossain, Z., Ferstl, J., Sparn, G., Geibel, C., ...
Low-temperature electrical resistivity of Yb1-xLaxRh2Si2 (2006)
Weickert, F., Gegenwart, P., Ferstl, J., Geibel, C., Steglich, F.
Low-temperature properties of the heavy fermion system YbIr2Si2 (2006)
Hossain, Z., Geibel, C., Radu, T., Tokiwa, Y., Weickert, F., Krellner, C., ...
Pressure effect on superconductivity in CeCoIn5-xSnx studied by thermal expansion (2006)
Donath, J. G., Gegenwart, P., Küchler, R., Oeschler, N., Steglich, F., Bauer, E. D., ...
Thermal expansion and Grüneisen ratio near quantum critical points (2006)
Küchler, R., Gegenwart, P., Weickert, F., Oeschler, N., Cichorek, T., Nicklas, M., ...
High-field phase diagram of the heavy-fermion metal YbRh2Si2 (2006)
Gegenwart, P., Tokiwa, Y., Westerkamp, T., Weickert, F., Custers, J., Ferstl, J., ...
Non-Fermi-liquid behaviour close to the disappearance of ferromagnetism in CePd1-xRhx (2006)
Pikul, A. P., Caroca-Canales, N., Deppe, M., Gegenwart, P., Sereni, J. G., Geibel, C., ...
Magnetic properties close to the quantum critical point in YbRh2Si2 (2006)
Gegenwart, P., Tokiwa, Y., Custers, J., Geibel, C., Steglich, F.
Tokiwa, Y., Pikul, A., Gegenwart, P., Steglich, F., Bud'ko, S. L., Canfield, P. C.
We present temperature and field dependent heat capacity and magnetization data taken at temperatures down to 50 mK and in an applied magnetic field up to 11.5 Tesla for YbAgGe, a heavy-fermion...
Metamagnetic quantum criticality in Sr3Ru2O7 studied by thermal expansion (2005)
Gegenwart, P., Weickert, F., Garst, M., Perry, R. S., Maeno, Y.
We report low-temperature thermal expansion measurements on the bilayer ruthenate Sr$_3$Ru$_2$O$_7$ as a function of magnetic field applied perpendicular to the Ruthenium-oxide planes. The...
Field-induced suppression of the heavy-fermion state in YbRh_2Si_2 (2005)
Tokiwa, Y., Gegenwart, P., Radu, T., Ferstl, J., Sparn, G., Geibel, C., ...
We report DC magnetization measurements on YbRh_2Si_2 at temperatures down to 0.04K, magnetic fields B
Magnetic phase diagram of CeCu2(Si1-xGex)2 measured with low-temperature thermal expansion (2005)
Oeschler,N., Deppe,M., Lengyel,E., Borth,R., Gegenwart,P., Sparn,G., ...
Two-Cannel Kondo Effect in Glass-Like ThAsSe (2005)
Cichorek, T., Sanchez, A., Gegenwart, P., Weickert, F., Wojakowski, A., Henkie, Z., ...
We present low-temperature heat and charge transport as well as caloric properties of a ThAsSe single crystal. An extra -AT1/2 term in the electrical resistivity, independent of magnetic fields as...
Ferromagnetic quantum critical fluctuations in YbRh_2(Si_{0.95}Ge_{0.05})_2 (2005)
Gegenwart, P., Custers, J., Tokiwa, Y., Geibel, C., Steglich, F.
The bulk magnetic susceptibility $\chi(T,B)$ of YbRh$_2$(Si$_{0.95}$Ge$_{0.05}$)$_2$ has been investigated %by ac-and dc-magnetometry at low temperatures and close to the field-induced quantum...
Two-Channel Kondo Effect in Glasslike ThAsSe (2005)
Cichorek,T., Sanchez,A., Gegenwart,P., Weickert,F., Wojakowski,A., Henkie,Z., ...
Pressure dependence of the low-temperature magnetization of YbRh2Si2 (2005)
Tokiwa,Y., Gegenwart,P., Sparn,G., Ferstl,J., Geibel,C., Steglich,F.
Search for a quantum critical end-point in CeRu2(Si1-xGex)2 (2005)
Weickert,F., Gegenwart,P., Mydosh,J. A., Steglich,F., Kanadani,C., Tabata,Y., ...
Thermal expansion of CeCu5.8Ag0.2 (2005)
Küchler,R., Gegenwart,P., Heuser,K., Stewart,G. R., Steglich,F.
Scaling of the magnetic entropy and magnetization in YbRh2(Si0.95Ge0.05)2 (2005)
Gegenwart,P., Tokiwa,Y., Neumaier,K., Geibel,C., Steglich,F.
Tuning YbRh2Si2 to a non-magnetic state by La-doping (2005)
Ferstl,J., Geibel,C., Weickert,F., Gegenwart,P., Radu,T., Lühmann,T., ...
Yb-based heavy-fermion metal situated close to a quantum critical point (2005)
Hossain,Z., Geibel,C., Weickert,F., Radu,T., Tokiwa,Y., Jeevan,H., ...
Field-Induced Suppression of the Heavy-Fermion State in YbRh2Si2 (2005)
Tokiwa,Y., Gegenwart,P., Radu,T., Ferstl,J., Sparn,G., Geibel,C., ...
Ferromagnetic Quantum Critical Fluctuations in YbRh2(Si0.95Ge0.05)2 (2005)
Gegenwart, P., Custers, J., Tokiwa, Y., Geibel, C., Steglich, F.
Magnetic phase diagram of CeCu2(Si1-xGex)2 measured with low-temperature thermal expansion (2005)
Oeschler, N., Deppe, M., Lengyel, E., Borth, R., Gegenwart, P., Sparn, G., ...
Two-Channel Kondo Effect in Glasslike ThAsSe (2005)
Cichorek, T., Sanchez, A., Gegenwart, P., Weickert, F., Wojakowski, A., Henkie, Z., ...
Pressure dependence of the low-temperature magnetization of YbRh2Si2 (2005)
Tokiwa, Y., Gegenwart, P., Sparn, G., Ferstl, J., Geibel, C., Steglich, F.
Search for a quantum critical end-point in CeRu2(Si1-xGex)2 (2005)
Weickert, F., Gegenwart, P., Mydosh, J. A., Steglich, F., Kanadani, C., Tabata, Y., ...
Thermal expansion of CeCu5.8Ag0.2 (2005)
Küchler, R., Gegenwart, P., Heuser, K., Stewart, G. R., Steglich, F.
Scaling of the magnetic entropy and magnetization in YbRh2(Si0.95Ge0.05)2 (2005)
Gegenwart, P., Tokiwa, Y., Neumaier, K., Geibel, C., Steglich, F.
Tuning YbRh2Si2 to a non-magnetic state by La-doping (2005)
Ferstl, J., Geibel, C., Weickert, F., Gegenwart, P., Radu, T., Lühmann, T., ...
Yb-based heavy-fermion metal situated close to a quantum critical point (2005)
Hossain, Z., Geibel, C., Weickert, F., Radu, T., Tokiwa, Y., Jeevan, H., ...
Field-Induced Suppression of the Heavy-Fermion State in YbRh2Si2 (2005)
Tokiwa, Y., Gegenwart, P., Radu, T., Ferstl, J., Sparn, G., Geibel, C., ...
Hall-effect evolution across a heavy-fermion quantum critical point (2004)
Paschen,S., Lühmann,T., Wirth,S., Gegenwart,P., Trovarelli,O., Geibel,C., ...
Disorder-Sensitive Phase Formation Linked to Metamagnetic Quantum Criticality (2004)
Grigera,S. A., Gegenwart,P., Borzi,R. A., Weickert,F., Schofield,A. J., Perry,R. S., ...
Hall-effect evolution across a heavy-fermion quantum critical point (2004)
Paschen, S., Luhmann, T., Wirth, S., Gegenwart, P., Trovarelli, O., Geibel, C., ...
A quantum critical point (QCP) develops in a material at absolute zero when a new form of order smoothly emerges in its ground state. QCPs are of great current interest because of their singular...
Grüneisen Ratio Divergence at the Quantum Critical Point in CeCu6-xAgx (2004)
Küchler,R., Gegenwart,P., Heuser,K., Scheidt,E. W., Stewart,G. R., Steglich,F.
Non-Fermi liquid normal state of the heavy-fermion superconductor UBe13 (2004)
Gegenwart,P., Langhammer,C., Helfrich,R., Oeschler,N., Lang,M., Kim,J. S., ...
Grueneisen Ratio Divergence at the Quantum Critical Point in CeCu_{6-x}Ag_x (2004)
Kuechler, R., Gegenwart, P., Heuser, K., Stewart, G. R., Steglich, F.
The heavy fermion system CeCu$_{6-x}$Ag$_x$ is studied at its antiferromagnetic quantum critical point, $x_c=0.2$, by low temperature ($T\geq 50$ mK) specific heat, $C(T)$, and volume thermal...
Scaling of the magnetic entropy and magnetization in YbRh_2(Si_{0.95}Ge_{0.05})_2 (2004)
Gegenwart, P., Tokiwa, Y., Neumaier, K., Geibel, C., Steglich, F.
The magnetic entropy of YbRh_2(Si_{0.95}Ge_{0.05})_2 is derived from low-temperature ($T\geq 18$ mK) specific heat measurements. Upon field-tuning the system to its antiferromagnetic quantum critical...
TLS Kondo effect in structurally disordered ThAsSe (2004)
Cichorek,T., Henkie,Z., Custers,J., Gegenwart,P., Steglich,F.
Low-temperature thermal expansion and magnetostriction of YbRh2(Si1-xGex)2 (x=0 and 0.05) (2004)
Küchler,R., Weickert,F., Gegenwart,P., Oeschler,N., Ferstl,J., Geibel,C., ...
Upper critical field and Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5 (2004)
Won,H., Maki,K., Haas,S., Oeschler,N., Weickert,F., Gegenwart,P.
Suppression of the Kondo state in YbRh2Si2 by large magnetic fields (2004)
Tokiwa,Y., Gegenwart,P., Weickert,F., Küchler,R., Custers,J., Ferstl,J., ...
TLS Kondo effect in structurally disordered ThAsSe (2004)
Cichorek, T., Henkie, Z., Custers, J., Gegenwart, P., Steglich, F.
Non-Fermi liquid normal state of the heavy-fermion superconductor UBe13 (2004)
Gegenwart, P., Langhammer, C., Helfrich, R., Oeschler, N., Lang, M., Kim, J. S., ...
Disorder-Sensitive Phase Formation Linked to Metamagnetic Quantum Criticality (2004)
Grigera, S. A., Gegenwart, P., Borzi, R. A., Weickert, F., Schofield, A. J., Perry, R. S., ...
Grüneisen Ratio Divergence at the Quantum Critical Point in CeCu6-xAgx (2004)
Küchler, R., Gegenwart, P., Heuser, K., Scheidt, E. W., Stewart, G. R., Steglich, F.
Low-temperature thermal expansion and magnetostriction of YbRh2(Si1-xGex)2 (x=0 and 0.05) (2004)
Küchler, R., Weickert, F., Gegenwart, P., Oeschler, N., Ferstl, J., Geibel, C., ...
Hall-effect evolution across a heavy-fermion quantum critical point (2004)
Paschen, S., Lühmann, T., Wirth, S., Gegenwart, P., Trovarelli, O., Geibel, C., ...
Upper critical field and Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5 (2004)
Won, H., Maki, K., Haas, S., Oeschler, N., Weickert, F., Gegenwart, P.
Suppression of the Kondo state in YbRh2Si2 by large magnetic fields (2004)
Tokiwa, Y., Gegenwart, P., Weickert, F., Küchler, R., Custers, J., Ferstl, J., ...
ThAsSe diamagnet: Evidence for a Kondo effect derived from structural two-level systems (2003)
Cichorek,T., Aoki,H., Custers,J., Gegenwart,P., Steglich,F., Henkie,Z., ...
Tuning heavy fermion systems into quantum criticality by magnetic field (2003)
Gegenwart,P., Custers,J., Tayama,T., Tenya,K., Geibel,C., Sparn,G., ...
Uniaxial Pressure Effects on CeIrIn5 and CeCoIn5 Studied by Low-Temperature Thermal Expansion (2003)
Oeschler,N., Gegenwart,P., Lang,M., Movshovich,R., Sarrao,J. L., Thompson,J. D., ...
Divergence of the Grüneisen Ratio at Quantum Critical Points in Heavy Fermion Metals (2003)
Küchler,R., Oeschler,N., Gegenwart,P., Cichorek,T., Neumaier,K., Tegus,O., ...
Divergence of the Grueneisen Ratio at Quantum Critical Points in Heavy Fermion Metals (2003)
Kuechler, R., Oeschler, N., Gegenwart, P., Cichorek, T., Neumaier, K., Tegus, O., ...
We present low-temperature volume thermal expansion, $\beta$, and specific heat, $C$, measurements on high-quality single crystals of CeNi2Ge2 and YbRh2(Si$_{0.95}$Ge$_{0.05}$)$_2$ which are located...
The break-up of heavy electrons at a quantum critical point (2003)
Custers,J., Gegenwart,P., Wilhelm,H., Neumaier,K., Tokiwa,Y., Trovarelli,O., ...
The break up of heavy electrons at a quantum critical point (2003)
Custers, J., Gegenwart, P., Wilhelm, H., Neumaier, K., Tokiwa, Y., Trovarelli, O., ...
The point at absolute zero where matter becomes unstable to new forms of order is called a quantum critical point (QCP). The quantum fluctuations between order and disorder that develop at this point...
Quantum criticality in YbRh2Si2 (2003)
Custers,J., Gegenwart,P., Neumaier,K., Wilhelm,H., Oeschler,N., Ishida,K., ...
Non-Fermi liquid normal state of the Heavy Fermion superconductor UBe13 (2003)
Gegenwart, P., Langhammer, C., Helfrich, R., Oeschler, N., Lang, M., Kim, J. S., ...
Non-Fermi liquid (NFL) behavior in the normal state of the heavy-fermion superconductor UBe13 is studied by means of low-temperature measurements of the specific heat, C, and electrical resistivity,...
Recent trends in heavy-fermion physics (2003)
Steglich,F., Sato,N. K., Aso,N., Gegenwart,P., Custers,J., Neumaier,K., ...
Tuning Heavy Fermion Systems into Quantum Criticality by Magnetic Field (2003)
Gegenwart, P., Custers, J., Tayama, T., Tenya, K., Geibel, C., Sparn, G., ...
We discuss a series of thermodynamic, magnetic and electrical transport experiments on the two heavy fermion compounds CeNi2Ge2 and YbRh2Si2 in which magnetic fields, B, are used to tune the systems...
Low-temperature specific heat of slightly off-stoichiometric CeNi2Ge2 (2003)
Cichorek,T., Geibel,C., Carocca-Canales,N., Lühmann,T., Gegenwart,P., Steglich,F.
Non-Fermi liquid effects close to a QCP in CeIn3-xSnx (2003)
Custers,J., Cichorek,T., Gegenwart,P., Caroca-Canales,N., Stockert,O., Geibel,C., ...
Possible heavy-fermion behavior in a Heusler-type compound YbPd2Sb (2003)
Kaczorowski,D., Leithe-Jasper,A., Cichorek,T., Tenya,K., Custers,J., Gegenwart,P., ...
THERMAL EXPANSION OF THE SKUTTERUDITE SUPERCONDUCTOR PrOs4Sb12 (2003)
Oeschler,N., Gegenwart,P., Steglich,F., Frederick,N. A., Bauer,E. D., Maple,M. B.
UBe13: PROTOTYPE OF A NON-FERMI-LIQUID SUPERCONDUCTOR (2003)
Oeschler,N., Kromer,F., Tayama,T., Tenya,K., Gegenwart,P., Sparn,G., ...
LOW TEMPERATURE MAGNETIZATION OF THE SKUTTERUDITE SUPERCONDUCTOR PrOs4Sb12 (2003)
Tenya,K., Oeschler,N., Gegenwart,P., Steglich,F., Frederick,N. A., Bauer,E. D., ...
Divergence of the Gruneisen ratio at quantum critical points in heavy fermion metals (2003)
Kuchler, R., Oeschler, N., Gegenwart, P., Cichorek, T., Neumaier, K., Tegus, O., ...
ThAsSe diamagnet: Evidence for a Kondo effect derived from structural two-level systems (2003)
Cichorek, T., Aoki, H., Custers, J., Gegenwart, P., Steglich, F., Henkie, Z., ...
Low-temperature specific heat of slightly off-stoichiometric CeNi2Ge2 (2003)
Cichorek, T., Geibel, C., Carocca-Canales, N., Lühmann, T., Gegenwart, P., Steglich, F.
Non-Fermi liquid effects close to a QCP in CeIn3-xSnx (2003)
Custers, J., Cichorek, T., Gegenwart, P., Caroca-Canales, N., Stockert, O., Geibel, C., ...
Quantum criticality in YbRh2Si2 (2003)
Custers, J., Gegenwart, P., Neumaier, K., Wilhelm, H., Oeschler, N., Ishida, K., ...
The break-up of heavy electrons at a quantum critical point (2003)
Custers, J., Gegenwart, P., Wilhelm, H., Neumaier, K., Tokiwa, Y., Trovarelli, O., ...
Tuning heavy fermion systems into quantum criticality by magnetic field (2003)
Gegenwart, P., Custers, J., Tayama, T., Tenya, K., Geibel, C., Sparn, G., ...
Possible heavy-fermion behavior in a Heusler-type compound YbPd2Sb (2003)
Kaczorowski, D., Leithe-Jasper, A., Cichorek, T., Tenya, K., Custers, J., Gegenwart, P., ...
Divergence of the Grüneisen Ratio at Quantum Critical Points in Heavy Fermion Metals (2003)
Küchler, R., Oeschler, N., Gegenwart, P., Cichorek, T., Neumaier, K., Tegus, O., ...
Uniaxial Pressure Effects on CeIrIn5 and CeCoIn5 Studied by Low-Temperature Thermal Expansion (2003)
Oeschler, N., Gegenwart, P., Lang, M., Movshovich, R., Sarrao, J. L., Thompson, J. D., ...
THERMAL EXPANSION OF THE SKUTTERUDITE SUPERCONDUCTOR PrOs4Sb12 (2003)
Oeschler, N., Gegenwart, P., Steglich, F., Frederick, N. A., Bauer, E. D., Maple, M. B.
UBe13: PROTOTYPE OF A NON-FERMI-LIQUID SUPERCONDUCTOR (2003)
Oeschler, N., Kromer, F., Tayama, T., Tenya, K., Gegenwart, P., Sparn, G., ...
Recent trends in heavy-fermion physics (2003)
Steglich, F., Sato, N. K., Aso, N., Gegenwart, P., Custers, J., Neumaier, K., ...
LOW TEMPERATURE MAGNETIZATION OF THE SKUTTERUDITE SUPERCONDUCTOR PrOs4Sb12 (2003)
Tenya, K., Oeschler, N., Gegenwart, P., Steglich, F., Frederick, N. A., Bauer, E. D., ...
First-Order Superconducting Phase Transition in CeCoIn5 (2002)
Bianchi,A., Movshovich,R., Oeschler,N., Gegenwart,P., Steglich,F., Thompson,J. D., ...
The superconducting phase transition in heavy fermion CeCoIn5 (T-c=2.3 K in zero field) becomes first order when the magnetic field Hparallel to[001] is greater than 4.7 T, and the transition...
Lang,M., Zherlitsyn,S., Wolf,B., Aoki,H., Cichorek,T., Gegenwart,P., ...
The quasi-onedimensional S = (1)/(2) antiferromagnet Yb4As3 is studied by using low-temperature measurements of the specific heat C(T,B), thermal expansion alpha(T,B) and longitudinal elastic mode...
Magnetic-Field Induced Quantum Critical Point in YbRh2Si2 (2002)
Gegenwart,P., Custers,J., Geibel,C., Neumaier,K., Tayama,T., Tenya,K., ...
We report low-temperature calorimetric, magnetic, and resistivity measurements on the antiferromagnetic (AF) heavy- fermion metal YbRh2Si2 ( T-N=70 mK) as a function of magnetic field B. While for...
Gegenwart, P., Custers, J., Tayama, T., Tenya, K., Geibel, C., Trovarelli, O., ...
We report low temperature specific heat, C, magnetization, M, susceptibility, chi, and electrical resistivity, rho, measurements on high-quality single crystals of the heavy-fermion system...
Magnetic-Field Induced Quantum Critical Point in YbRh$_2$Si$_2$ (2002)
Gegenwart, P., Custers, J., Geibel, C., Neumaier, K., Tayama, T., Tenya, K., ...
We report low-temperature calorimetric, magnetic and resistivity measurements on the antiferromagnetic (AF) heavy-fermion metal YbRh$_2$Si$_2$ (${T_N =}$ 70 mK) as a function of magnetic field $B$....
Magnetotransport of the low-carrier density one-dimensional S=1/2 antiferromagnet Yb4As3 (2002)
Gegenwart,P., Aoki,H., Cichorek,T., Custers,J., Jaime,M., Ochiai,A., ...
The transport properties of the semimetallic quasi-one- dimensional S = 1/2 antiferromagnet Yb4As3 have been studied by performing low-temperature (T greater than or equal to 0.02 K) and high...
Specific heat and disorder in the mixed state of non-magnetic borocarbides (2002)
Lipp,D., Schneider,M., Gladun,A., Drechsler,S. L., Freudenberger,J., Fuchs,G., ...
The temperature and magnetic-field dependence of the specific heat c(p)(T, H) in the superconducting (sc) mixed state as well as the upper critical field H-c2(T) have been measured for...
First order superconducting phase transition in CeCoIn$_5$ (2002)
Bianchi, A., Movshovich, R., Oeschler, N., Gegenwart, P., Steglich, F., Thompson, J. D., ...
We investigated the magnetic field dependence of the superconducting phase transition in heavy fermion CeCoIn_5 (T_c = 2.3 K) using specific heat, magneto-caloric effect, and thermal expansion...
Aoki,H., Cichorek,T., Gegenwart,P., Custers,J., Lang,M., Ochiai,A., ...
We have investigated the difference in the low-T specific heat, C(T, B), of single- and multi-domain Yb4As3 crystals in magnetic fields Bless than or equal to4 T. Upon increasing field, which was...
Low-temperature specific heat of non-charge ordered Yb4(As0.36Sb0.64)3 and (Yb0.87Lu0.13)4As3 (2002)
Cichorek,T., Aoki,H., Gegenwart,P., Lang,M., Ochiai,A., Steglich,F.
Most of the unusual low-T properties of Yb4As3, including a large specific-heat coefficient C(T)/T similar or equal to 200 mJ/K(2)mol, result from the one-dimensional S = 1/2 antiferromagnetism...
Thermodynamic and transport properties of the one-dimensional S=½ antiferromagnet Yb4As3 (2002)
Gegenwart,P., Aoki,H., Cichorek,T., Custers,J., Harrison,N., Jaime,M., ...
The semimetallic quasi-one-dimensional S = 1/2 antiferromagnet Yb4As3 has been studied by performing low-temperature (T) and high magnetic-field (B) measurements of the specific heat, C(T, B),...
Kohgi,M., Iwasa,K., Mignot,J. M., Fåk,B., Hiess,A., Gegenwart,P., ...
Inelastic neutron scattering experiments on the charge ordered state of Yb4As3 have been performed under magnetic field up to about 6 T. The observed dependence of the magnetic response from the...
Effect of Ge-doping and pressure in the vicinity of the QCP of YbRh2Si2 (2002)
Trovarelli,O., Custers,J., Gegenwart,P., Geibel,C., Hinze,P., Mederle,S., ...
We present electrical resistivity (p) and AC magnetic susceptibility measurements on Ge-doped single crystals of the NFL compound YbRh2Si2. Upon producing the volume expansion (DeltaVsimilar or equal...
Low-temperature specific heat for off- and near-stoichiometric UAsSe (2002)
Cichorek,T., Henkie,Z., Wojakowski,A., Pietraszko,A., Gegenwart,P., Lang,M., ...
Two UAsSe single crystals with slight variations of the As/Se content ratio have been investigated. The development of the low-T upturn in the resistivity is accompanied by smooth decrease of the...
Charge ordering and onedimensional magnetism in Yb4As3 (2002)
Schmidt,B., Aoki,H., Cichorek,T., Gegenwart,P., Ochiai,A., Steglich,F.
Influence of disorder on superconductivity in non-magnetic rare-earth nickel borocarbides (2002)
Fuchs,G., Müller,K. H., Freudenberger,J., Nenkov,K., Drechsler,S. L., Shulga,S. V., ...
Aoki, H., Cichorek, T., Gegenwart, P., Custers, J., Lang, M., Ochiai, A., ...
We have investigated the difference in the low-T specific heat, C(T, B), of single- and multi-domain Yb4As3 crystals in magnetic fields Bless than or equal to4 T. Upon increasing field, which was...
First-Order Superconducting Phase Transition in CeCoIn5 (2002)
Bianchi, A., Movshovich, R., Oeschler, N., Gegenwart, P., Steglich, F., Thompson, J. D., ...
The superconducting phase transition in heavy fermion CeCoIn5 (T-c=2.3 K in zero field) becomes first order when the magnetic field Hparallel to[001] is greater than 4.7 T, and the transition...
Low-temperature specific heat of non-charge ordered Yb4(As0.36Sb0.64)3 and (Yb0.87Lu0.13)4As3 (2002)
Cichorek, T., Aoki, H., Gegenwart, P., Lang, M., Ochiai, A., Steglich, F.
Most of the unusual low-T properties of Yb4As3, including a large specific-heat coefficient C(T)/T similar or equal to 200 mJ/K(2)mol, result from the one-dimensional S = 1/2 antiferromagnetism...
Low-temperature specific heat for off- and near-stoichiometric UAsSe (2002)
Cichorek, T., Henkie, Z., Wojakowski, A., Pietraszko, A., Gegenwart, P., Lang, M., ...
Two UAsSe single crystals with slight variations of the As/Se content ratio have been investigated. The development of the low-T upturn in the resistivity is accompanied by smooth decrease of the...
Thermodynamic and transport properties of the one-dimensional S=½ antiferromagnet Yb4As3 (2002)
Gegenwart, P., Aoki, H., Cichorek, T., Custers, J., Harrison, N., Jaime, M., ...
The semimetallic quasi-one-dimensional S = 1/2 antiferromagnet Yb4As3 has been studied by performing low-temperature (T) and high magnetic-field (B) measurements of the specific heat, C(T, B),...
Magnetotransport of the low-carrier density one-dimensional S=1/2 antiferromagnet Yb4As3 (2002)
Gegenwart, P., Aoki, H., Cichorek, T., Custers, J., Jaime, M., Ochiai, A., ...
The transport properties of the semimetallic quasi-one- dimensional S = 1/2 antiferromagnet Yb4As3 have been studied by performing low-temperature (T greater than or equal to 0.02 K) and high...
Magnetic-Field Induced Quantum Critical Point in YbRh2Si2 (2002)
Gegenwart, P., Custers, J., Geibel, C., Neumaier, K., Tayama, T., Tenya, K., ...
We report low-temperature calorimetric, magnetic, and resistivity measurements on the antiferromagnetic (AF) heavy- fermion metal YbRh2Si2 ( T-N=70 mK) as a function of magnetic field B. While for...
Kohgi, M., Iwasa, K., Mignot, J. M., Fåk, B., Hiess, A., Gegenwart, P., ...
Inelastic neutron scattering experiments on the charge ordered state of Yb4As3 have been performed under magnetic field up to about 6 T. The observed dependence of the magnetic response from the...
Lang, M., Zherlitsyn, S., Wolf, B., Aoki, H., Cichorek, T., Gegenwart, P., ...
The quasi-onedimensional S = (1)/(2) antiferromagnet Yb4As3 is studied by using low-temperature measurements of the specific heat C(T,B), thermal expansion alpha(T,B) and longitudinal elastic mode...
Specific heat and disorder in the mixed state of non-magnetic borocarbides (2002)
Lipp, D., Schneider, M., Gladun, A., Drechsler, S. L., Freudenberger, J., Fuchs, G., ...
The temperature and magnetic-field dependence of the specific heat c(p)(T, H) in the superconducting (sc) mixed state as well as the upper critical field H-c2(T) have been measured for...
Effect of Ge-doping and pressure in the vicinity of the QCP of YbRh2Si2 (2002)
Trovarelli, O., Custers, J., Gegenwart, P., Geibel, C., Hinze, P., Mederle, S., ...
We present electrical resistivity (p) and AC magnetic susceptibility measurements on Ge-doped single crystals of the NFL compound YbRh2Si2. Upon producing the volume expansion (DeltaVsimilar or equal...
Charge ordering and onedimensional magnetism in Yb4As3 (2002)
Schmidt, B., Aoki, H., Cichorek, T., Gegenwart, P., Ochiai, A., Steglich, F.
Influence of disorder on superconductivity in non-magnetic rare-earth nickel borocarbides (2002)
Fuchs, G., Müller, K. H., Freudenberger, J., Nenkov, K., Drechsler, S. L., Shulga, S. V., ...
Specific heat and disorder in the mixed state of non-magnetic borocarbides (2001)
Lipp, D., Schneider, M., Gladun, A., Freudenberger, J., Fuchs, G., ...
The temperature and magnetic field dependence of the specific heat cp(T,H) in the superconducting mixed state as well as the upper critical field Hc2(T) have been measured for polycrystalline...
A non-magnetic Kondo effect in UAsSe ferromagnet? (2001)
Cichorek,T., Henkie,Z., Gegenwart,P., Lang,M., Wojakowski,A., Dischner,M., ...
LOW-TEMPERATURE MAGNETIC AND TRANSPORT PROPERTIES OF THE CLEAN NFL SYSTEM YbRh2(Si1-xGex)2 (2001)
Custers,J., Gegenwart,P., Geibel,C., Steglich,F., Tayama,T., Trovarelli,O., ...
Gegenwart,P., Cichorek,T., Custers,J., Lang,M., Aoki,H., Ochiai,A., ...
Evidence for low-dimensional magnetic behaviour in CePt5Ge3 (2001)
Hossain,Z., Takabatake,T., Geibel,C., Gegenwart,P., Oguro,I., Steglich,F.
INFLUENCE OF DISORDER ON SUPERCONDUCTIVITY IN RARE-EARTH NICKEL BOROCARBIDES (2001)
Fuchs,G., Freudenberger,J., Nenkov,K., Rosner,H., ...
Staggered Field Effect on the One-Dimensional S = 1/2 Antiferromagnet Yb4As3 (2001)
Kohgi,M., Iwasa,K., Fåk,B., Gegenwart,P., Lang,M., ...
SPECIFIC HEAT OF YxLu1-xNi2B2C IN THE MIXED STATE (2001)
Lipp,D., Schneider,M., Gladun,A., Freudenberger,J., Fuchs,G., ...
Low-energy excitaions of the semimetallic one-dimensional S = 1/2 antiferromagnet Yb4As3 (2001)
Schmidt,B., Aoki,H., Cichorek,T., Custers,J., Gegenwart,P., Kohgi,M., ...
SUPERCONDUCTIVITY AND MAGNETISM IN HEAVY-FERMIONS (2001)
Steglich,F., Gegenwart,P., Geibel,C., Hinze,P., Lang,M., Langhammer,C., ...
A non-magnetic Kondo effect in UAsSe ferromagnet? (2001)
Cichorek, T., Henkie, Z., Gegenwart, P., Lang, M., Wojakowski, A., Dischner, M., ...
LOW-TEMPERATURE MAGNETIC AND TRANSPORT PROPERTIES OF THE CLEAN NFL SYSTEM YbRh2(Si1-xGex)2 (2001)
Custers, J., Gegenwart, P., Geibel, C., Steglich, F., Tayama, T., Trovarelli, O., ...
Evidence for low-dimensional magnetic behaviour in CePt5Ge3 (2001)
Hossain, Z., Takabatake, T., Geibel, C., Gegenwart, P., Oguro, I., Steglich, F.
Staggered Field Effect on the One-Dimensional S = 1/2 Antiferromagnet Yb4As3 (2001)
Kohgi, M., Iwasa, K., Fåk, B., Gegenwart, P., Lang, M., ...
SPECIFIC HEAT OF YxLu1-xNi2B2C IN THE MIXED STATE (2001)
Lipp, D., Schneider, M., Gladun, A., Freudenberger, J., Fuchs, G., ...
Low-energy excitaions of the semimetallic one-dimensional S = 1/2 antiferromagnet Yb4As3 (2001)
Schmidt, B., Aoki, H., Cichorek, T., Custers, J., Gegenwart, P., Kohgi, M., ...
SUPERCONDUCTIVITY AND MAGNETISM IN HEAVY-FERMIONS (2001)
Steglich, F., Gegenwart, P., Geibel, C., Hinze, P., Lang, M., Langhammer, C., ...
Specific heat of (Y,Lu)Ni2B2C in the mixed state (2000)
Lipp, D., Schneider, M., Gladun, A., Freudenberger, J., Fuchs, G., ...
The temperature and magnetic field dependences of the electronic specific heat in the superconducting mixed state as well as the upper critical field have been measured on a (Y,Lu)Ni2B2C series to...
Evidence for an antiferromagnetic quantum critical point near stoichiometric CeCu2Si2 (1999)
Gegenwart,P., Lang,M., Link,A., Sparn,G., Geibel,C., Steglich,F., ...
Non-Fermi-Liquid properties and exotic Superconductivity in CeCu2Si2 and (UTh)Be13 (1999)
Lang,M., Gegenwart,P., Helfrich,R., Köppen,M., Kromer,F., Langhammer,C., ...
Evidence for an antiferromagnetic quantum critical point near stoichiometric CeCu2Si2 (1999)
Gegenwart, P., Lang, M., Link, A., Sparn, G., Geibel, C., Steglich, F., ...
Non-Fermi-Liquid properties and exotic Superconductivity in CeCu2Si2 and (UTh)Be13 (1999)
Lang, M., Gegenwart, P., Helfrich, R., Köppen, M., Kromer, F., Langhammer, C., ...
Anomalous heavy fermions in CeNi2Ge2 and CeCu2Si2. (1999)
Steglich, F., Gegenwart, P., Geibel, C., Lang, M., Sparn, G.
Breakup of Heavy Fermions on the Brink of "Phase A" in CeCu2Si2 (1998)
Gegenwart,P., Langhammer,C., Geibel,C., Helfrich,R., Lang,M., Sparn,G., ...
Pressure Studies near Quantum Phase Transitions in Strongly Correlated Ce Systems (1998)
Sparn,G., Donnevert,L., Hellmann,P., Horn,R., Laube,F., Link,A., ...
CeCu2Si2 And UBe13: New Questions - Old Answers? (1998)
Steglich,F., Geibel,C., Helfrich,R., Kromer,F., Lang,M., Sparn,G., ...
Breakup of Heavy Fermions on the Brink of "Phase A" in CeCu2Si2 (1998)
Gegenwart, P., Langhammer, C., Geibel, C., Helfrich, R., Lang, M., Sparn, G., ...
Pressure Studies near Quantum Phase Transitions in Strongly Correlated Ce Systems (1998)
Sparn, G., Donnevert, L., Hellmann, P., Horn, R., Laube, F., Link, A., ...
CeCu2Si2 And UBe13: New Questions - Old Answers? (1998)
Steglich, F., Geibel, C., Helfrich, R., Kromer, F., Lang, M., Sparn, G., ...
Are heavy-fermion metals Fermi liquids? (1997)
Steglich,F., Gegenwart,P., Helfrich,R., Langhammer,C., Hellmann,P., Donnevert,L., ...
"Non-Fermi-liquid" phenomena in heavy-fermion CeCu2Si2 and CeNi2Ge2 (1997)
Steglich,F., Hellmann,P., Thomas,S., Gegenwart,P., Link,A., Helfrich,R., ...
Evolution of magnetism and superconductivity in CeCu2(Si1-xGex)2 (1997)
Trovarelli,O., Weiden,M., Müller-Reisener,R., Gómez-Berisso,M., Gegenwart,P., Deppe,M., ...
Are heavy-fermion metals Fermi liquids? (1997)
Steglich, F., Gegenwart, P., Helfrich, R., Langhammer, C., Hellmann, P., Donnevert, L., ...