Magnetic Anisotropy in Single Crystal Terfenol-D Thin Films

Autor: Ch. Dufour, G. Patrat, G. Marchal, Karine Dumesnil, Ph. Bauer, V. Oderno, Ph. Mangin, Alexandra Mougin
Rok vydání: 1997
Předmět:
Zdroj: Scopus-Elsevier
ISSN: 1946-4274
0272-9172
DOI: 10.1557/proc-475-181
Popis: 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 at 4.2 K to around at 300 K. This variation is different from the bulk case (for which the magnetization is along at 4.2 K and along 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.
Databáze: OpenAIRE
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