2017年11月
Enhanced orbital magnetic moment in FeCo nanogranules observed by Barnett effect
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
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- 巻
- 442
- 号
- 開始ページ
- 329
- 終了ページ
- 331
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.jmmm.2017.06.101
- 出版者・発行元
- ELSEVIER SCIENCE BV
The gyroscopic g' factor, g', of FeCo nanogranules embedded in a matrix of MgF2 (FeCo-MgF2) was determined by measuring the magnetic-field generation from a rotating sample due to the Barnett effect. The g' value of the FeCo-MgF2 is estimated to be 1.76 +/- 0.11. The orbital contribution to the magnetic moment in the FeCo nanogranules was found to be quite large compared with that in bulk FeCo, being consistent with a density-functional-theory calculation that shows that the orbital magnetic moment may increase at the FeCo/MgF2 interfaces. The result suggests that the orbital magnetic moment is enhanced by symmetry breaking at the surface of the FeCo nanogranules. (C) 2017 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.jmmm.2017.06.101
- ISSN : 0304-8853
- eISSN : 1873-4766
- Web of Science ID : WOS:000410646900046