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Magnetic Anisotropy in Single Crystal Terfenol-D Thin Films

Published online by Cambridge University Press:  10 February 2011

V. Oderno ,
C. Dufour ,
K. Dumesnil ,
A. Mougin ,
Ph. Bauer ,
Ph. Mangin ,
G. Marchal  and
G. Patrat
V. Oderno
Affiliation:
Laboratoire de Physique des Matériaux (URA CNRS 155)Université H. Poincaré, BP 239, 54506 Vandoeuvre les Nancy cédex, France
C. Dufour
Affiliation:
Laboratoire de Physique des Matériaux (URA CNRS 155)Université H. Poincaré, BP 239, 54506 Vandoeuvre les Nancy cédex, France
K. Dumesnil
Affiliation:
Laboratoire de Physique des Matériaux (URA CNRS 155)Université H. Poincaré, BP 239, 54506 Vandoeuvre les Nancy cédex, France
A. Mougin
Affiliation:
Laboratoire de Physique des Matériaux (URA CNRS 155)Université H. Poincaré, BP 239, 54506 Vandoeuvre les Nancy cédex, France
Ph. Bauer
Affiliation:
Laboratoire de Physique des Matériaux (URA CNRS 155)Université H. Poincaré, BP 239, 54506 Vandoeuvre les Nancy cédex, France
Ph. Mangin
Affiliation:
Laboratoire de Physique des Matériaux (URA CNRS 155)Université H. Poincaré, BP 239, 54506 Vandoeuvre les Nancy cédex, France
G. Marchal
Affiliation:
Laboratoire de Physique des Matériaux (URA CNRS 155)Université H. Poincaré, BP 239, 54506 Vandoeuvre les Nancy cédex, France
G. Patrat
Affiliation:
Laboratoire de Cristallographie, BP 166, 38042 Grenoble cédex 9, France
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Abstract

Tb03.Dy0.7Fe2 (known as Terfenol-D) thin films have been epitaxially grown for the first time with [110] as the growth direction. X-Ray diffraction measurements evidence that the films are strained compared to the bulk alloy. Mössbauer spectroscopy and Kerr rotation measurements show that the easy magnetization direction varies from <116> at 4.2 K to around <133> at 300 K. This variation is different from the bulk case (for which the magnetization is along <100> at 4.2 K and along <111> at room temperature). This effect can be qualitatively understood if we consider the influence of the strains induced by epitaxy on the various energy terms which govern the direction of magnetization.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 475: Symposium M – Magnetic Ultrathin Films, Multilayers, and Surfaces – 1997 , 1997 , 181
Copyright
Copyright © Materials Research Society 1997

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References

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