G. Van Tendeloo

Interface controlled electronic variations in correlated heterostructures (2009)

Gehrke, K., Moshnyaga, V., Lebedev, O. I., Kirilenko, D., Van Tendeloo, G., Samwer, K.

An interface modification of LCMO-BTO superlattices was found to massively influence magnetic and magnetotransport properties. Moreover it determines the crystal structure of the manganite layers,...

Oberservation of nanostripes and -clusters in (Nd, EuGd) Ba§2Cu§3O§x superconductors. (2009)

Koblischka, M.R., Winter, M., Das, P., Koblischka-Veneva, A., Muralidhar, M., Wolf, T., ...

Physica C, 469(2009) S.168-76

Observation of nanostripes and -clusters in NEG superconductors. (2009)

Koblischka, M.R., Winter, M., Das, P., Koblischka-Veneva, A., Muralidhar, M., Wolf, T., ...

Frühjahrstagung DPG, Fachverband Tiefe Temperaturen, Dresden, 22.-27.März 2009

Temperature and magnetic field dependence of the voltagein GaAs films with superconducting Ga grains (2008)

...

We have studied granular films consisting of nanoscale Ga droplets formed on GaAs films via a method of vacuum annealing to promote As evaporation. For temperatures and magnetic fields below the bulk...

Direct observation of nanometer-scale pinning sites in (Nd§0§.§3§3Eu§0§.§2§0Gd§0§.§4§7)Ba§2Cu§3O§7§-§#d single crystals. (2008)

Das, P., Koblischka, M.R., Turner, S., Van Tendeloo, G., Wolf, Th., Jirsa, M., ...

Europhysics Letters, 83(2008) S.37005/1-6

Structural and luminescence investigation on gadolinium gallium garnet nanocrystalline powders prepared by solution combustion synthesis (2007)

Krsmanovic, R., Morozov, V. A., Lebedev, O. I., Polizzi, S., Speghini, A., Bettinelli, M., ...

Nanocrystalline powders of undoped and lanthanide (Pr3+, Tm3+)- doped gadolinium gallium garnet, Gd3Ga5O12 (GGG), were prepared by propellant synthesis and studied by x-ray powder diffraction (XRD),...

Observation of Co/CoO nanoparticles below the critical size for exchange bias (2007)

Margueritat, J, Gonzalo, J, Afonso, C. N, ...

We compare the magnetic properties of pure and oxidized Co nanoparticles embedded in an amorphous Al2O3 matrix. Nanoparticles with diameters of 2 or 3 nm were prepared by alternate pulsed laser...

Dislocation distributions in brown diamond (2006)

Willems, B, Martineau, P. M, Fisher, D, Van Royen, J, Van Tendeloo, G

Dislocation distributions are characterized on a gm-scale in various plastically deformed natural brown type IIa diamond samples before and after high-pressure high-temperature (HPHT) treatment....

0 and pi phase Josephson coupling through an insulating barrier with magnetic impurities (2006)

Gazi, S, Golubovic, DS, Vavra, I, Derer, J, Verbeeck, J, ...

We have studied the temperature and field dependencies of the critical current I-C in the Nb-Fe0.1Si0.9-Nb Josephson junction with a tunneling barrier formed by a paramagnetic insulator. We...

Influence of finite size effects on exchange anisotropy in oxidized Co nanocluster assembled films (2006)

Ievlev, D.N., Hendrich, C., Lievens, P., Hörmann, U., ...

We compare the magnetic properties of Co cluster assembled films with different degrees of oxidation. Clusters with grain size (2.3 +/- 0.7) nm are produced in a laser vaporization cluster source and...

Mechanism for Ohmic contact formation on Si3N4 passivated AlGaN/GaN high-electron-mobility transistors (2006)

Van Tendeloo, G, Derluyn, J, Shrivastava, P, Leys, M. R, ...

Recent experiments have shown that in situ passivation by Si3N4 of AlGaN/GaN high-electron-mobility transistors results in improved electrical characteristics. Transmission electron microscopy...

Investigation of AIN nucleation laers for AlGaN/GaN heterostructures on 4H-SiC (2006)

Leys, Maarten, Germain, Marianne, Derluyn, Joff, ...

Zeotile-2: A microporous analogue of MCM-48 (2005)

Aerts, Caroline, ...

Ordered mesoporous materials with specific microporosity in the mesopore walls can be assembled by a secondary templating synthesis departing from a clear subcolloidal suspension dedicated to the...

Critical size for exchange bias in ferromagnetic-antiferromagnetic particles (2005)

Ievlev, DN, Margueritat, J, Gonzalo, J, ...

We present a study of the magnetic properties of oxidized Co nanoparticles with an average grain size of 3 nm, embedded in an amorphous Al2O3 matrix. These nanoparticles can be considered as...

Formation of metallic In in InGaN/GaN multiquantum wells (2004)

Van Tendeloo, G, Jacobs, K, Moerman, I, Leys, MR

InxGa1-xN/GaN light-emitting diode structures with a high In concentration may lose all optical output after capping the active region with a p-type GaN layer. Transmission electron microscopy has...

Aluminum incorporation into MCM-48 toward the creation of Bronsted acidity (2004)

Cool, P, Meynen, V, Vansant, EF, ...

The possibilities and limits of aluminum incorporation into the silica framework of a cubic MCM-48 have been thoroughly studied. Four different sources have been tested, namely aluminum sulfate...

Reply to the comment 'On the TEM and AFM Evidence of Zeosil Nanoslabs Present during the Synthesis of Silicalite-1' (2004)

Liang, D, ...

FWO; IAP-PAI

Dislocations in diamond: Dissociation into partials and their glide motion (2003)

Blumenau, AT, Jones, R, Frauenheim, T, Willems, B, Lebedev, OI, Van Tendeloo, G, ...

The dissociation of 60degrees and screw dislocations in diamond is modeled in an approach combining isotropic elasticity theory with ab initio-based tight-binding total-energy calculations. Both...

Effect of growth interrupt and growth rate on MOVPE-grown InGaN/GaN MQW structures (2003)

Leys, MR, Moerman, I, Van Tendeloo, G

InGaN/GaN multiple quantum wells (MQWs) were grown by metalorganic vapor phase epitaxy to quantity the influence of various growth parameters on the optical properties and on the In incorporation,...

Tiling silicalite-1 nanoslabs into 3D mosaics (2003)

Lebedev, OI, ...

Three new zeotiles, materials combining the advantages of micro- and mesoporous silica materials and capable of withstanding 300degreesC, have been designed by tiling Silicalite-1 nano-slabs. The...

Controlled formation of amine-templated mesostructured zirconia with remarkably high thermal stability (2003)

Linssen, T, Aerts, K, Cool, P, Lebedev, O, Van Tendeloo, G, ...

In order to control the reactivity of the inorganic precursor and the hybrid formation, the evaporation induced self-assembly procedure (EISA) has been applied to direct alkyl amines into zirconia...

Transmission electron microscopy and Monte Carlo simulations of ordering in Au-Cu clusters produced in a laser vaporization source (2001)

Van Tendeloo, G, Zhurkin, E, Hou, M, Kuhn, LT, ...

Au-Cu bimetallic alloy clusters are produced in a laser vaporization sourer starting from Au-Cu alloy targets with different stoichiometric compositions. The clusters are deposited on two different...

Doubling the critical temperature of La1.9Sr0.1CuO4 using epitaxial strain (1998)

Perret, J, Fompeyrine, J, Machler, E, Van Tendeloo, G

The discovery(1) of high-temperature superconductivity in copper oxides raised the possibility that superconductivity could be achieved at room temperature. But since 1993, when a critical...

HREM study of ion implantation in 6H-SiC at high temperatures (1997)

Lebedev, O. I., Van Tendeloo, G., Suvorova, A. A., Usov, I. O., Suvorov, A. V.

Implantation of aluminium into 6H-SiC at high temperature and at a high dose results in the formation of aluminium precipitates with a definite orientation relationship to the matrix....

Structure determination of YBCO fluorinated phases by HREM (1997)

Van Tendeloo, G., Lebedev, O. I., Shpanchenko, R. V., Antipov, E. V.

The structure of fluorinated YBa2Cu3O6Fx phases has been determined using a combination of X-ray diffraction, electron diffraction, high-resolution electron microscopy and microanalysis. It was...