Origin of Perpendicular Magnetic Anisotropy in Tb-Fe Amorphous Alloy
| Autor: | Yoshihiko Satake, M. Ohta, Kazumasa Yamada, Asaya Fujita, Kazuaki Fukamichi |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Materials science
Amorphous metal Quantitative Biology::Neurons and Cognition Condensed matter physics Annealing (metallurgy) Mechanical Engineering Epoxy Condensed Matter Physics Thermal expansion Condensed Matter::Materials Science Magnetic anisotropy Nuclear magnetic resonance Magnetic shape-memory alloy Mechanics of Materials Sputtering visual_art Thermal visual_art.visual_art_medium General Materials Science |
| Zdroj: | MATERIALS TRANSACTIONS. 44:2605-2610 |
| ISSN: | 1347-5320 1345-9678 |
| DOI: | 10.2320/matertrans.44.2605 |
| Popis: | The origin of perpendicular magnetic anisotropy has been investigated in a thick Tb-Fe amorphous alloy plate prepared by dc high-rate sputtering. In the as-prepared samples with and without a Cu substrate, no distinct difference in perpendicular magnetic anisotropy was confirmed. After annealing, the perpendicular magnetic anisotropy in the sample with a Cu substrate was maintained, whereas that disappeared in the sample without a Cu substrate. Inducing thermal strains with an epoxy resin, the perpendicular magnetic anisotropy was restored. Therefore, it is concluded that the strong strains induced by the difference between the thermal expansion of the Tb-Fe amorphous alloy plate and the Cu substrate dominate to the origin of perpendicular magnetic anisotropy. |
| Databáze: | OpenAIRE |
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