J. Singleton

Details der Publikationsliste

Zeitraum

1974 - 2009

Anzahl

124

Co-Autoren

Weak anisotropy of the superconducting upper critical field in Fe1.11Te0.6Se0.4 single crystals (2009)

Fang, M. H., Yang, J. H., Balakirev, F. F., Kohama, Y., Singleton, J., Qian, B., ...

We have determined the resistive upper critical field Hc2 for single crystals of the superconductor Fe1.11Te0.6Se0.4 using pulsed magnetic fields of up to 60T. A rather high zero-temperature upper...

Comparison of multiwavelength observations of 9 broad-band pulsars with the spectrum of the emission from an extended current with a superluminally rotating distribution pattern (2009)

Ardavan, H., Ardavan, A., Singleton, J., Fasel, J., Junor, W., Middleditch, J., ...

The observed spectra of 9 pulsars for which multiwavelength data are available from radio to $X$- or $\gamma$-ray bands (Crab, Vela, Geminga, B0656+14, B1055-52, B1509-58, B1706-44, B1929+10, and...

A new collective phenomenon arising from spin anisotropic perturbations to a Heisenberg square lattice manifested in paramagnetic resonance experiments (2009)

Cox, S., McDonald, R. D., Singleton, J., Miller, S., Goddard, P. A., Shawish, S. El, ...

We report unexpected behaviour in a family of Cu spin- 1/2 systems, in which an apparent gap in the low energy magneto-optical absorption spectrum opens at low temperature. This previously unreported...

Nearly Isotropic superconductivity in (Ba,K)Fe2As2 (2008)

Yuan, H. Q., Singleton, J., Balakirev, F. F., Baily, S. A., Chen, G. F., Luo, J. L., ...

Superconductivity was recently observed in the iron-arsenic-based compounds with a superconducting transition temperature (Tc) as high as 56K [1-7], naturally raising comparisons with the high Tc...

Isotope effect in quasi-two-dimensional metal-organic antiferromagnets (2008)

Goddard, P. A., Singleton, J., Maitland, C., Blundell, S. J., Lancaster, T., Baker, P. J., ...

Although the isotope effect in superconducting materials is well-documented, changes in the magnetic properties of antiferromagnets due to isotopic substitution are seldom discussed and remain poorly...

Mechanism of generation of the emission bands in the dynamic spectrum of the Crab pulsar (2008)

Ardavan, H., Ardavan, A., Singleton, J., Perez, M.

We show that the proportionately spaced emission bands in the dynamic spectrum of the Crab pulsar (Hankins T. H. & Eilek J. A., 2007, ApJ, 670, 693) fit the oscillations of the square of a Bessel...

Exchange parameters of copper-based quasi-two-dimensional Heisenberg magnets measured using high magnetic fields and muon-spin rotation (2008)

Goddard, P. A., Singleton, J., Sengupta, P., McDonald, R. D., Lancaster, T., Blundell, S. J., ...

Pulsed-field magnetization experiments (fields $B$ of up to 85 T and temperatures $T$ down to 0.4 K) are reported on nine organic Cu-based two-dimensional (2D) Heisenberg magnets. All compounds show...

Superconducting properties of Fe-based layered superconductor LaO$_{0.9}$F$_{0.1-\delta}$FeAs (2008)

Chen, G. F., Li, Z., Li, G., Zhou, J., Wu, D., Dong, J., ...

We have employed a new route to synthesize single phase F-doped LaOFeAs compound and confirmed the superconductivity above 20 K in this Fe-based system. We show that the new superconductor has a...

The dependence of the Composite Fermion effective mass on carrier density and Zeeman energy (2008)

R J Nicholas, D R Leadley, M S Daly, P Gee, J Singleton, ...

Abstract. Measurements of the temperature-dependent resistivity of high-mobility GaAs/GaAlAs heterojunctions are used to measure the effective mass of Composite Fermions (CF). The CF effective mass...

Expanding retrieval practice: An effective aid to preschool children's learning. (2007)

Fritz, C., Morris, P. E., Nolan, D., Singleton, J.

Abstract The benefits of expanding retrieval practice for preschool children were explored in two experiments. In Experiment 1, three groups learned names for six plush toy pigs using expanding...

Quantum Oscillations in the Underdoped Cuprate YBa2Cu4O8 (2007)

Yelland, E. A., Singleton, J., Mielke, C. H., Harrison, N., Balakirev, F. F., Dabrowski, B., ...

We report the observation of quantum oscillations in the underdoped cuprate superconductor YBa2Cu4O8 using a tunnel-diode oscillator technique in pulsed magnetic fields up to 85T. There is a clear...

Sliding charge density wave in manganites (2007)

Cox, Susan, Singleton, J., McDonald, R. D., Migliori, A., Littlewood, P. B.

The so-called stripe phase of the manganites is an important example of the complex behaviour of metal oxides, and has long been interpreted as the localisation of charge at atomic sites. Here, we...

A de Haas-van Alphen study of the filled skutterudite compounds PrOs$_4$As$_{12}$ and LaOs$_4$As$_{12}$ (2007)

Ho, Pei-Chun, Singleton, J., Maple, M. B., Harima, Hisatomo, Goddard, P. A., Henkie, Z., ...

Comprehensive magnetic-field-orientation dependent studies of the susceptibility and de Haas-van Alphen effect have been carried out on single crystals of the filled skutterudites PrOs$_4$As$_{12}$...

Very weak electron-phonon coupling and strong strain coupling in manganites (2007)

Cox, S., Loudon, J. C., Williams, A. J., Attfield, J. P., Singleton, J., Midgley, P. A., ...

The coupling of the manganite stripe phase to the lattice and to strain has been investigated via transmission electron microscopy studies of polycrystalline and thin film manganites. In...

Angle-dependent magnetoresistance oscillations due to magnetic breakdown orbits (2007)

Bangura, A. F., Goddard, P. A., Singleton, J., Tozer, S. W., Coldea, A. I., Ardavan, A., ...

We present experimental evidence for a hitherto unconfirmed type of angle-dependent magnetoresistance oscillation caused by magnetic breakdown. The effect was observed in the organic superconductor...

Occurrence of concurrent `orthogonal' polarization modes in the Lienard-Wichert field of a rotating superluminal source (2007)

Schmidt, A., Ardavan, H., Fasel, J., Singleton, J., Ardavan, A.

We evaluate the Lienard-Wiechert field of a rotating superluminal point source numerically and show that this radiation field has the following intrinsic characteristics. (i) It is sharply focused...

Separation of energy scales in the kagome antiferromagnet TmAgGe: a magnetic-field-orientation study up to 55 T (2006)

Goddard, P. A., Singleton, J., Lima-Sharma, A. L., Morosan, E., Blundell, S. J., Bud'ko, S. L., ...

TmAgGe is an antiferromagnet in which the spins are confined to distorted kagome-like planes at low temperatures. We report angle-dependent measurements of the magnetization $M$ in fields of up to 55...

Dirty Peierls transitions in alpha-Uranium (2006)

Cox, S., Rosten, E., McDonald, R. D., Singleton, J.

We point out that a recent model for the heat capacity of alpha-U that invokes CDW collective modes is unphysical. We show instead that the features in the heat capacity of both single-crystal and...

Comment on "Radial dependence of radiation from a bounded source" by Kirk T. McDonald (2006)

Ardavan, A., Ardavan, H., Singleton, J.

The purpose of this note is to point out that McDonald's criticism of our work \cite{r1} is based on a circular argument. In order to show that the field of a bounded source falls off as...

Dirty Peierls transition to stripe phase in manganites (2006)

Cox, S., Lashley, J. C., Rosten, E., Singleton, J., Williams, A. J., Littlewood, P. B.

The nature of the phase transitions in La$_{1-x}$Ca$_x$MnO$_3$ and Pr$_{0.48}$Ca$_{0.52}$MnO$_3$ has been probed using heat capacity and magnetisation measurements. The phase transition associated...

A photonic bandgap resonator to facilitate GHz frequency conductivity experiments in pulsed magnetic fields (2006)

McDonald, R. D., Singleton, J., Goddard, P. A., Harrison, N., Mielke, C. H.

We describe instrumentation designed to perform millimeter-wave conductivity measurements in pulsed high magnetic fields at low temperatures. The main component of this system is an entirely...

High-field magnetoresistive effects in reduced-dimensionality organic metals and superconductors (2006)

Singleton, J., McDonald, R. D., Harrison, N.

The large charge-transfer anisotropy of quasi-one- and quasi-two-dimensional crystalline organic metals means that magnetoresistance is one of the most powerful tools for probing their bandstructure...

Orbitally quantized density-wave states perturbed from equilibrium (2006)

Harrison, N., McDonald, R. D., Singleton, J.

We consider the effect that a change in the magnetic induction B has in causing an orbitally quantized field-induced spin- or charge density wave (FISDW or FICDW) state to depart from thermodynamic...

Origin of Rapid Oscillations in Low Dimensional (TMTSF)2PF6 (2005)

Kornilov, A. V., Pudalov, V. M., Ardavan, A., Qualls, J. S., Singleton, J.

In order to clarify the origin of the "Rapid Oscillation" (RO) in (TMTSF)2PF6, we studied the magnetoresistance anisotropy in the Field Induced Spin Density Wave (FISDW) phase. We have found that in...

Robust superconducting state in the low-quasiparticle-density organic metals β^{″}-(BEDT-TTF)_{4}[(H_{3}O)M(C_{2}O_{4})_{3}]∙Y: superconductivity due to proximity to a charge-ordered state (2005)

Bangura, A.F., Coldea, A.I., Singleton, J., Ardavan, A., Akutsu-Sato, A., Akutsu, H., ...

We report magnetotransport measurements on the quasi-two-dimensional charge-transfer salts beta[double-prime]-(BEDT-TTF)4[(H3O)M(C2O4)3]Y, with Y=C6H5NO2 and C6H5CN using magnetic fields of up to 45...

Recent high-magnetic-field studies of unusual groundstates in quasi-two-dimensional crystalline organic metals and superconductors (2005)

Singleton, J., Harrison, N., McDonald, R., Goddard, P. A., Bangura, A., Coldea, A., ...

After a brief introduction to crystalline organic superconductors and metals, we shall describe two recently-observed exotic phases that occur only in high magnetic fields. The first involves...

Catastrophic Fermi surface reconstruction in the shape-memory alloy AuZn (2005)

Goddard, P. A, Singleton, J., McDonald, R. D., Harrison, N., Lashley, J. C., Harima, H., ...

AuZn undergoes a shape-memory transition at 67 K. The de Haas van Alphen effect persists to 100 K enabling the observation of a change in the quantum oscillation spectrum indicative of a catastrophic...

Fermi Surface as a Driver for the Shape-Memory Effect in AuZn (2005)

McDonald, R. D., Lashley, J. C., Singleton, J., Goddard, P. A., Drymiotis, F., Harrison, N., ...

Martensites are materials that undergo diffusionless, solid-state transitions. The martensitic transition yields properties that depend on the history of the material and may allow it to recover its...

Landau quantization effects in the charge-density-wave system (Per)$_2M$(mnt)$_2$ (where $M=$Au and Pt) (2004)

McDonald, R. D., Harrison, N., Singleton, J., Bangura, A., Goddard, P. A., Ramirez, A. P., ...

A finite transfer integral $t_a$ orthogonal to the conducting chains of a highly one-dimensional metal gives rise to empty and filled bands that simulate an indirect-gap semiconductor upon formation...

Absence of field-induced charge-density wave states in (Per)$_2$Pt(mnt)$_2$ (2004)

McDonald, R. D., Harrison, N., Goddard, P., Singleton, J., Chi, X.

Graf {\it et al.} [Phys. Rev. Lett. {\bf 93} 076406 (2004)] recently attributed features in the magnetic-field-dependent longitudinal resistance of (Per)$_2$Pt(mnt)$_2$ to a cascade of field-induced...

Suppression of the $\gamma-\alpha$ structural phase transition in $Ce_{0.8} La_{0.1} Th_{0.1}$ by large magnetic fields (2004)

Drymiotis, F., Singleton, J., Harrison, N., Balicas, L., Bangura, A., Mielke, C. H., ...

The $\gamma-\alpha$ transition in Ce$_{0.8}$La$_{0.1}$Th$_{0.1}$ is measured as a function of applied magnetic field using both resistivity and magnetization. The $\gamma - \alpha$ transition...

Experimental demonstration of a new radiation mechanism: emission by an oscillating, accelerated, superluminal polarization current (2004)

Ardavan, A., Singleton, J., Ardavan, H., Fopma, J., Halliday, D., Hayes, W.

We describe the experimental implementation of a superluminal ({\it i.e.} faster than light {\it in vacuo}) polarization current distribution that both oscillates and undergoes centripetal...

Angle Dependent Magnetoresistance of the Layered Organic Superconductor \kappa-(ET)2Cu(NCS)2: Simulation and Experiment (2003)

Goddard, P. A., Blundell, S. J., Singleton, J., McDonald, R. D., Ardavan, A., Narduzzo, A., ...

The angle-dependences of the magnetoresistance of two different isotopic substitutions (deuterated and undeuterated) of the layered organic superconductor \kappa-(ET)2Cu(NCS)2 are presented. The...

Charge-density Waves Survive the Pauli Paramagnetic Limit (2003)

McDonald, R., Harrison, N., Balicas, L., Kim, K. H., Singleton, J., Chi, X.

Measurements of the resistance of single crystals of (Per)$_2$Au(mnt)$_2$ have been made at magnetic fields $B$ of up to 45 T, exceeding the Pauli paramagnetic limit of $B_{\rm P}\approx 37$ T. The...

A new quantum fluid at high magnetic fields in the marginal charge-density-wave system $\alpha$-(BEDT-TTF)$_2M$Hg(SCN)$_4$ (where $M=$~K and Rb) (2003)

Harrison, N., Singleton, J., Bangura, A., Ardavan, A., Goddard, P. A., McDonald, R. D., ...

Single crystals of the organic charge-transfer salts $\alpha$-(BEDT-TTF)$_2M$Hg(SCN)$_4$ have been studied using Hall-potential measurements ($M=$K) and magnetization experiments ($M$ = K, Rb). The...

Fermi-surface topology and the effects of intrinsic disorder in a class of charge-transfer salts containing magnetic ions, \beta''-(BEDT-TTF)_4[(H_3O)M(C_2O_4)_3]Y (2003)

Coldea, A. I., Bangura, A. F., Singleton, J., Ardavan, A., Akutsu-Sato, A., Akutsu, H., ...

We report high-field magnetotransport measurements on \beta''-(BEDT-TTF)_4[(H_3O)M(C_2O_4)_3]Y, where M=Ga, Cr and Fe and Y=C_5H_5N. We observe similar Shubnikov-de Haas oscillations in all...

Experimental electronic heat capacities of $\alpha-$ and $\delta-$Plutonium; heavy-fermion physics in an element (2003)

Lashley, J. C., Singleton, J., Migliori, A., Betts, J. B., Fisher, R. A., Smith, J. L., ...

We have measured the heat capacities of $\delta-$Pu$_{0.95}$Al$_{0.05}$ and $\alpha-$Pu over the temperature range 2-303 K. The availability of data below 10 K plus an estimate of the phonon...

Non-adiabatic small polaron hopping in the n=3 Ruddlesden-Popper compound Ca4Mn3O10 (2003)

Lago, J., Battle, P. D., Rosseinsky, M. J., Coldea, A. I., Singleton, J.

Magnetotransport properties of the compound Ca4Mn3O10 are interpreted in terms of activated hopping of small magnetic polarons in the non-adiabatic regime. Polarons are most likely formed around Mn3+...

The spectral and polarization characteristics of the nonspherically decaying radiation generated by polarization currents with superluminally rotating distribution patterns (2003)

Ardavan, H., Ardavan, A., Singleton, J.

We present a theoretical study of the emission from a superluminal polarization current whose distribution pattern rotates (with an angular frequency $\omega$) and oscillates (with a frequency...

Cladding pumping technology for L-band EDFAs (2003)

Yla-Jarkko, K., Turner, P.W., Godfrey, I., Singleton, J., Grudinin, A.B., ...

We analyze the performance of two types of L-band EDFAs based on cladding pumping technology. The amplifiers offer 30 dB gain over 1570-1607 nm spectral band with gain flatness of /spl plusmn/0.5 dB...

Low noise intelligent cladding-pumped L-band EDFA (2003)

Yla-Jarkko, K.H., Codemard, C., Singleton, J., Turner, P.W., Godfrey, I., ...

We present results on a low-cost cladding-pumped L-band amplifier based on side pumping (GTWave) fiber technology and pumped by a single 980-nm multimode diode. We show that simultaneous noise...

The frequency spectrum of focused broadband pulses of electromagnetic radiation generated by polarization currents with superluminally rotating distribution patterns (2002)

Ardavan, H., Ardavan, A., Singleton, J.

We investigate the spectral features of the emission from a superluminal polarization current whose distribution pattern rotates with an angular frequency $\omega$ and oscillates with an...

The pressure dependence of many-body interactions in the organic superconductor $\kappa$-(BEDT-TTF)$_{2}$Cu(SCN)$_{2}$: A comparison of high pressure infrared reflectivity and Raman scattering experiments (2002)

McDonald, R. D., Singleton, J., Hayes, W.

We determine the pressure dependence of the electron-phonon coupling in $\kappa$-(BEDT-TTF)$_{2}$Cu(SCN)$_{2}$ by comparison of high pressure Raman scattering and high pressure infrared (IR)...

Comparison of the Fermi-surface topologies of kappa-(BEDT-TTF)_2 Cu(NCS)_2 and its deuterated analogue (2002)

Edwards, R. S., Narduzzo, A., Singleton, J., Ardavan, A., Schlueter, J. A.

We have measured details of the quasi one-dimensional Fermi-surface sections in the organic superconductor kappa-(BEDT-TTF)_2 Cu(NCS)_2 and its deuterated analogue using angle-dependent...

Language and literacy (2002)

Albertini, J, Ehrhardt, E, Strauss, H, Lang, H, Schley, S, Berent, IC, ...

To request individual papers in any of the sections, please include the full citation and the AN number found in brackets at the end of the citation. Contact the Department of Educational Resources...

Language and literacy (2002)

Albertini, John, Ehrhardt, E., Strauss, H., Lang, Harry, Schley, Sara, Berent, I., ...

To request individual papers in any of the sections, please include the full citation and the AN number found in brackets at the end of the citation. Contact the Department of Educational Resources...

The Commonwealth as an economic network (2001)

Robertson, PL, Singleton, J

Research on the economics and sociology of business networks also sheds light on the development of networks of countries. The British Commonwealth was an important global network, or group of...

Magneto-optics of organic crystalline field effect transistors (2001)

Ardavan, A., Blundell, S. J., Singleton, J.

Organic molecular FETs provide an experimental framework for studying the band-filling dependent properties of two-dimensional metals. Here, we propose experiments to investigate the band-filling...

A statistical model for the intrinsically broad superconducting to normal transition in quasi-two-dimensional crystalline organic metals (2001)

Singleton, J., Harrison, N., Mielke, C. H., Schlueter, J., Kini, AM

Although quasi-two-dimensional organic superconductors such as $\kappa$-(BEDT-TTF)$_2$Cu(NCS)$_2$ seem to be very clean systems, with apparent quasiparticle mean-free paths of several thousand \AA,...

Cyclotron resonance harmonics in the organic superconductor $\beta^{\prime\prime}$-(BEDT-TTF)$_2$SF$_5$CH$_2$CF$_2$SO$_3$; observation of a new kind of effective mass renormalization (2001)

Edwards, R. S., Symington, J. A., Ardavan, A., Singleton, J., Rzepniewski, E., McDonald, R. D., ...

Cyclotron resonance, along with its second and third harmonics, has been observed in the quasi-two-dimensional organic superconductor $\beta^{\prime\prime}$-(BEDT-TTF)$_2$SF$_5$CH$_2$CF$_2$SO$_3$....

The pressure dependence of electron-phonon coupling in the organic superconductor $\kappa$-(BEDT-TTF)$_{2}$Cu(SCN)$_{2}$: A comparison of high pressure infrared reflectivity and Raman scattering experiments (2001)

McDonald, R. D., Singleton, J., Hayes, W.

We determine the pressure dependence of the electron-phonon coupling constant in $\kappa$-(BEDT-TTF)$_{2}$Cu(SCN)$_{2}$ by comparison of high pressure Raman scattering and high pressure infrared...

Observation of the Fulde-Ferrell-Larkin-Ovchinnikov state in the quasi-two-dimensional organic superconductor $\kappa$-(BEDT-TTF)$_2$Cu(NCS)$_2$ (2001)

Singleton, J., Symington, J. A., Ardavan, A., Kurmoo, M., Day, P.

Single crystals of the layered organic type II superconductor, $\kappa$-(BEDT-TTF)$_{2}$Cu(NCS)$_{2}$, have been studied in magnetic fields of up to 33 T and at temperatures between 0.5 K and 11 K...

Thermal activation between Landau levels in the organic superconductor $\beta''$-(BEDT-TTF)$_{2}$SF$_{5}$CH$_{2}$CF$_{2}$SO$_{3}$ (2001)

Ardavan, A., Symington, J. A., Singleton, J., Harrison, N., Mielke, C. H., ...

We show that Shubnikov-de Haas oscillations in the interlayer resistivity of the organic superconductor $\beta''$-(BEDT-TTF)$_{2}$SF$_{5}$ CH$_{2}$CF$_{2}$SO$_{3}$ become very pronounced in magnetic...

Experimental observation of Frohlich superconductivity in high magnetic fields (2001)

Harrison, N., Mielke, C. H., Singleton, J., Brooks, J., Tokumoto, M.

Resistivity and irreversible magnetisation data taken within the high-magnetic-field CDWx phase of the quasi-two-dimensional organic metal alpha-(BEDT-TTF)2KHg(SCN)4 are shown to be consistent with a...

The Commonwealth as an economic network (2001)

Robertson, PL, Singleton, J

Research on the economics and sociology of business networks also sheds light on the development of networks of countries. The British Commonwealth was an important global network, or group of...

The Commonwealth as an economic network (2001)

Robertson, PL, Singleton, J

Research on the economics and sociology of business networks also sheds light on the development of networks of countries. The British Commonwealth was an important global network, or group of...

An investigation into the possibility of transmission of tick-borne pathogens via blood transfusion (1999)

Arguin, P. M., Singleton, J., Rotz, L. D., Marston, E., Treadwell, T. A., Slater, K., ...

STUDY DESIGN AND METHODS: Donors and recipients were asked to complete questionnaires regarding symptoms and risk factors for infection and to provide blood samples for laboratory analysis. RESULTS:...

An Investigation into the Possibility of Transmission of Tick-Borne Pathogens Via Blood Transfusion (1999)

Arguin, P.M., Singleton, J., Rotz, L.D., Marston, E., Treadwell, T.A., Slater, K., ...

BACKGROUND: Tick-borne illnesses were diagnosed in a group of National Guard members, including some who had donated blood a few days before the onset of symptoms. A voluntary recall of those blood...

Applications of Simulator Freeze to Carrier Glideslope Tracking Instruction. (1998)

Hughes,R. G., Lintern,G., Wightman,D. C., Brooks,R. B., Singleton,J.

Twenty-five experienced F-4 and F-16 Air Force pilots were instructed in carrier landings in the Visual Technology Research Simulator (VTRS). The training was conducted under three instructional...

E. Matthews (1998)

B. Cook, J. Singleton, J. Keane, B. Nkwenti-azeh, J. H. Gillespie, J. Mckee

CALScribe: a multimedia template ideal for CALL development

Chiral Fermi liquids and a new version of the quantum Hall effect observed in organic conductors at very high magnetic fields (1998)

Singleton, J, Harrison, N, Honold, MM, Yaguchi, H, Mielke, C, Rickel, D, ...

RP: Singleton, J; UNIV OXFORD; DEPT PHYS, CLARENDON LAB, PARKS RD; OXFORD OX1 3PU; ENGLANDIN: LOS ALAMOS NATL LAB, NATL HIGH MAGNET FIELD LAB, LOS ALAMOS, NM 87545, USA; KATHOLIEKE UNIV LEUVEN, VASTE...

The polaron effect in GaAs-(Al,Ga)As studied with a pulsed-field magnet: Free-electron-laser combination (1998)

Langerak, C, Li, L, Van Bockstal, L, Ardavan A,, ...

RP: Singleton, J; UNIV OXFORD; DEPT PHYS, CLARENDON LAB, PARKS RD; OXFORD OX1 3PU; ENGLANDIN: UNIV OXFORD, DEPT PHYS, CLARENDON LAB, OXFORD OX1 3PU, ENGLAND; KATHOLIEKE UNIV LEUVEN, VASTE STOF FYS...

Magnetotransport in a pseudomorphic gaas/ga0.8in0.2as/ga0.75al0.25as heterostructure with a si delta-doping layer (1995)

Vanderburgt, M, Karavolas, Vc, Peeters, Fm, Singleton, J, Nicholas, Rj, Herlach, Fritz; U0010463, ...

Magnetotransport properties of a pseudomorphic GsAs/Ga0.8In0.2As/Ga0.75Al0.25As heterostructure are investigated in pulsed magnetic fields up to 50 T and at temperatures of T = 1.4 and 4.2 K. The...

Magnetotransport in a pseudomorphic GaAs/GaInAs/GaAlAs heterostructure with a Si delta-doping layer (1995)

Karavolas, V. C., Peeters, F. M., Singleton, J., Nicholas, R. J., Herlach, F., ...

Magnetotransport properties of a pseudomorphic GaAs/Ga0.8In0.2As/Ga0.75Al0.25As heterostructure are investigated in pulsed magnetic fields up to 50 T and at temperatures of T=1.4 K and 4.2 K. The...

Temperature Induced Transitions between Insulator, Metal, and Quantum Hall States (1994)

Kravchenko, S. V., Mason, Whitney, Furneaux, J. E., Caulfield, J. M., Singleton, J., Pudalov, V. M.

We report the observation of TEMPERATURE-INDUCED transitions between insulator, metal, and quantum-Hall behaviors for transport coefficients in the very dilute high mobility two-dimensional electron...

Magnetotransport and fermi-surface topology of beta''-(bedt-ttf)2aubr2 - the effects of spin-density-wave formation (1994)

Doporto, M, Singleton, J, Pratt, Fl, Caulfield, J, Hayes, W, Perenboom, Jaaj, ...

Magnetoresistance measurements have been made on a number of single-crystal samples of the metallic charge-transfer salt beta''-(BEDT-TTF)2AuBr2, using magnetic fields up to 50 T. The experiments...

Ethical principles at the beginning of life. (1994)

Singleton, J.

Copyright Taylor and Francis Group [Full text of this article is not available in the UHRA]

High-field magnetotransport studies of (et)2mhg(scn)4 salts (m=k, nh4) (1993)

Singleton, J, Pratt, Fl, Doporto, M, Caulfield, J, Hayes, W, Deckers, I, ...

The angle dependence of the magnetoresistance (MR) of (ET)2(SCN)4 (M=K,NH4) has been measured in steady magnetic fields up to 50 T. In (ET)2KHg(SCN)4 We observe two SdH frequencies in the MR below...

Magnetooptical and magnetotransport studies of electron electron interactions in organic conductors using fields up to 50-t (1993)

Singleton, J, Pratt, Fl, Doporto, M, Caulfield, Jm, Hill, So, Janssen, Tjbm, ...

This paper reviews our recent studies of charge-transfer salts of the ion bis(ethylenedithio)tetrathiafulvalene (ET). The first part describes magneto-transport measurements which demonstrate...

Thermal transport in free-standing GaAs wires in a high magnetic field (1992)

Potts, A, Singleton, J, Kelly, M J, Smith, C G, Hasko, D G, ...

We have studied electron heating effects in free-standing GaAs wires subjected to magnetic fields of up to 20 T, applied both parallel and perpendicular to the long axis of the wires: the purpose of...

Thermal transport in free-standing GaAs wires in a high magnetic field (1992)

Potts, A, Singleton, J, Kelly, M J, Smith, C G, Hasko, D G, ...

We have studied electron heating effects in free-standing GaAs wires subjected to magnetic fields of up to 20 T, applied both parallel and perpendicular to the long axis of the wires: the purpose of...

Thermal transport in free-standing GaAs wires in a high magnetic field (1992)

Potts, A, Singleton, J, Kelly, M J, Smith, C G, Hasko, D G, ...

We have studied electron heating effects in free-standing GaAs wires subjected to magnetic fields of up to 20 T, applied both parallel and perpendicular to the long axis of the wires: the purpose of...

Thermal transport in free-standing semiconductor fine wires (1991)

Potts, A., Kelly, M. J., Hasko, D. G., Smith, C. G., Cleaver, J. R. A., Ahmed, H., ...

The effects of electron heating in free-standing n+ GaAs wires have been studied over the temperature range 0.45 K - 4.2 K. The results indicate that for low lattice temperatures and heating currents...

Thermal transport in free-standing semiconductor fine wires (1991)

Potts, A., Kelly, M. J., Hasko, D. G., Smith, C. G., Cleaver, J. R. A., Ahmed, H., ...

The effects of electron heating in free-standing n+ GaAs wires have been studied over the temperature range 0.45 K - 4.2 K. The results indicate that for low lattice temperatures and heating currents...

Thermal transport in free-standing semiconductor fine wires (1991)

Potts, A., Kelly, M. J., Hasko, D. G., Smith, C. G., Cleaver, J. R. A., Ahmed, H., ...

The effects of electron heating in free-standing n+ GaAs wires have been studied over the temperature range 0.45 K - 4.2 K. The results indicate that for low lattice temperatures and heating currents...

Quality of life: a critical review of current concepts, measures and their clinical implications. (1989)

Goodinson, S., Singleton, J.

Original article can be found at: http://www.sciencedirect.com/science/journal/00207489 Copyright Elsevier Ltd. DOI: 10.1016/0020-7489(89)90019-9 [Full text of this article is not available in the...

DIAMAGNETIC SHIFTS OF QUANTUM WELL EXCITONS IN STRONG MAGNETIC FIELDS APPLIED IN THE WELL PLANES (1987)

Pulsford, N., Singleton, J., Nicholas, R., Foxon, C.

The behaviour of excitons associated with transitions from the light and heavy hole subbands to the electron subbands has been studied in GaAs-(Ga,Al)As quantum wells, with well widths between 2.2...

MAGNETOOPTICS OF (Ga, In) As QUANTUM WELLS : EXCITON BINDING ENERGIES AND CARRIER EFFECTIVE MASSES (1987)

Singleton, J., Pulsford, N., Mowbray, D., Skolnick, M., Taylor, L., Bass, S., ...

Transmission measurements, in magnetic fields of up to 16T, have been performed on a series of undoped (Ga,In)As-InP quantum wells. Transitions with Landau indices up to l=15 and energies up to...

QUASI-BOUND STATES IN AN ASYMMETRIC GaAs-AlAs SUPERLATTICE (1987)

Singleton, J., Nicholas, R., Pulsford, N., Couch, N., Kelly, M.

Interband photoconductivity measurements have been performed on a "Quasi-Graded-Gap" Superlattice (QGGSL). A number of features, both sharp and broad, are observed in the photoresponse, corresponding...

DIAMAGNETIC SHIFTS OF QUANTUM WELL EXCITONS IN STRONG MAGNETIC FIELDS APPLIED IN THE WELL PLANES (1987)

Pulsford, N., Singleton, J., Nicholas, R., Foxon, C.

The behaviour of excitons associated with transitions from the light and heavy hole subbands to the electron subbands has been studied in GaAs-(Ga,Al)As quantum wells, with well widths between 2.2...

MAGNETOOPTICS OF (Ga, In) As QUANTUM WELLS : EXCITON BINDING ENERGIES AND CARRIER EFFECTIVE MASSES (1987)

Singleton, J., Pulsford, N., Mowbray, D., Skolnick, M., Taylor, L., Bass, S., ...

Transmission measurements, in magnetic fields of up to 16T, have been performed on a series of undoped (Ga,In)As-InP quantum wells. Transitions with Landau indices up to l=15 and energies up to...

QUASI-BOUND STATES IN AN ASYMMETRIC GaAs-AlAs SUPERLATTICE (1987)

Singleton, J., Nicholas, R., Pulsford, N., Couch, N., Kelly, M.

Interband photoconductivity measurements have been performed on a "Quasi-Graded-Gap" Superlattice (QGGSL). A number of features, both sharp and broad, are observed in the photoresponse, corresponding...

DIAMAGNETIC SHIFTS OF QUANTUM WELL EXCITONS IN STRONG MAGNETIC FIELDS APPLIED IN THE WELL PLANES (1987)

Pulsford, N., Singleton, J., Nicholas, R., Foxon, C.

The behaviour of excitons associated with transitions from the light and heavy hole subbands to the electron subbands has been studied in GaAs-(Ga,Al)As quantum wells, with well widths between 2.2...

MAGNETOOPTICS OF (Ga, In) As QUANTUM WELLS : EXCITON BINDING ENERGIES AND CARRIER EFFECTIVE MASSES (1987)

Singleton, J., Pulsford, N., Mowbray, D., Skolnick, M., Taylor, L., Bass, S., ...

Transmission measurements, in magnetic fields of up to 16T, have been performed on a series of undoped (Ga,In)As-InP quantum wells. Transitions with Landau indices up to l=15 and energies up to...

QUASI-BOUND STATES IN AN ASYMMETRIC GaAs-AlAs SUPERLATTICE (1987)

Singleton, J., Nicholas, R., Pulsford, N., Couch, N., Kelly, M.

Interband photoconductivity measurements have been performed on a "Quasi-Graded-Gap" Superlattice (QGGSL). A number of features, both sharp and broad, are observed in the photoresponse, corresponding...

Moral theories and tests of adequacy. (1981)

Singleton, J.

Copyright Blackwell Publishing [Full text of this article is not available in the UHRA]

The explanatory power of Chomsky's transformational generative grammar. (1974)

Singleton, J.

Original article can be found at: http://mind.oxfordjournals.org/archive/index.dtl Copyright Mind Association. DOI: 10.1093/mind/LXXXIII.331.429 [Full text of this article is not available in the...

Double blind, placebo controlled trial of metronidazole in Crohn's disease.

Sutherland, L, Singleton, J, Sessions, J, Hanauer, S, Krawitt, E, Rankin, G, ...

A double blind study compared the efficacy of metronidazole in two doses (20 mg/kg, 10 mg/kg) with placebo in patients with Crohn's disease. One hundred and five patients participated but only 56...