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408 results on '"Teillet, J."'

13. Structural and magnetic studies of sputtered Fe1-xCrx thin films

Author

Duc, N.-H., Fnidiki, A., Teillet, J., Youssef, J. Ben, and Le Gall, H.

Subjects
Iron alloys -- Research, Magnetism -- Research, Superconducting magnets -- Research, Physics
Abstract

An investigation into the structural and magnetic properties of sputtered Fe1-xCrx thin films is presented.

Published
2000

14. Magnetic, Mossbauer and magnetostrictive studies of amorphous Tb(Fe0.55Co0.45)1.5 films

Author

Danh, T. M., Duc, N. H., Tanh, H. N., and Teillet, J.

Subjects
Cobalt -- Mechanical properties, X-rays -- Diffraction, Physics
Abstract

The Tb(Fe0.55Co0.45)1.5 films are fabricated by rf magnetron sputtering from a composite target using a x-ray diffraction, vibrating sample magnetometer. The study shows that Co substitution, coupled with the effects of zero-field annealing, results in an enhancement of both the low-field and the saturation magnetostriction.

Published
2000

16. Monte Carlo investigation of transition and compensation temperatures of Fe/Tb multilayers

Author

Veiller, L., Ledue, D, and Teillet J.

Subjects
Monte Carlo method -- Usage, Heisenberg uncertainty principle -- Usage, Transition temperature -- Research, Simulation methods -- Usage, Rare earth metals -- Research, Physics
Abstract

This paper discusses the dependence of Fe thickness on the temperature transition and compensation in Fe/Tb multilayers using Heisenberg bilayer model and Monte Carlo simulations.

Published
2000

22. Structural and magnetic properties of the Ti/Fe multilayers

Author

Fnidiki, A., Juraszek, J., Teillet, J., Duc, N.H., Danh, T.M., Kaabouchi, M., and Sella, C.

Subjects
Thin films, Multilayered -- Research, Physics
Abstract

Structural and magnetic properties of sputtered Fe/Ti multilayers with Ti thicknesses have been studied using conversion electron Mossbauer spectrometry, x-ray diffraction and TEM, as well as magnetization measurement. Particular attention is paid to the correlation between their magnetic properties and their interfacial structures. Fe layers with thickness of less than 1 nm were alloyed forming an amorphous TiFe(sub2) phase. The iron-rich cyrstalline Fe-Ti alloy was formed as the Fe-layer thickness increases.

Published
1998

23. Structural and magnetic transformations of annealed Tb/Fe multilayers

Author

Juraszek, A., Fnidiki, A., and Teillet, J.

Subjects
Thin films, Multilayered -- Research, Thin films -- Magnetic properties, Physics
Abstract

Amorphous and crystalline sputtered Tb/Fe multilayers were annealed at various temperatures in a high-vacuum furnace and examined at 300 deg K by x-ray diffraction and conversion electron Mossbauer spectrometry to investigate the effect of annealing on structural and magnetic characteristics. The perpendicular magnetic anisotropy improved at low annealing temperature because of a demixing process which sharpens the interfaces. The mixing of layers gradually destroyed the layered structure at intermediate annealing temperatures. At high temperatures, crystallization of bcc-Fe and hcp-Tb occurred.

Published
1998

48. Monte Carlo investigation of the eight-state Potts model on quasiperiodic tilings

Author

Ledue, D., Landau, D.P., and Teillet, J.

Subjects
Monte Carlo method -- Usage, Temperature measurements -- Observations, Physics
Abstract

The eight-state Potts model on the two-dimensional quasiperiodic octagonal tiling with free boundary conditions, has been investigated by a Monte Carlo simulation, to identify the nature of a temperature-driven transition. Drastic free boundary effects of the numerical data, strongly disturb probability distributions of the internal energy, as well as the scaling behaviour of the specific heat.

Published
1998

49. Atomic-scale study of TbCo2.5/Fe multilayers by laser-assisted tomographic atom probe.

Author

Grenier, A., Lardé, R., Cadel, E., Vurpillot, F., Juraszek, J., Teillet, J., and Tiercelin, N.

Subjects
TERBIUM, COBALT, IRON, MULTILAYERED thin films, TOMOGRAPHY, NANOSCIENCE
Abstract

Sputtered (TbCo2.5 25 nm/Fe 20 nm) multilayers have been analyzed by laser-assisted tomographic atom probe. It allowed us to perform three-dimensional reconstructions of the layers and to determine their composition at the atomic scale. From the concentration profiles inside the multilayer, we show that the diffused interfaces are not symmetric and that a stronger Fe-Co mixing is present at the top of the crystalline iron layers as compared to the top of amorphous TbCo layers. [ABSTRACT FROM AUTHOR]

Published
2007
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