2017年
Study of structural, magnetic and electronic properties of Ni-Fe-Ga based ferromagnetic shape memory alloys
61ST DAE-SOLID STATE PHYSICS SYMPOSIUM
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- 巻
- 1832
- 号
- 記述言語
- 英語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
- DOI
- 10.1063/1.4980592
- 出版者・発行元
- AMER INST PHYSICS
The structural, magnetic and electronic properties of two samples with nominal compositions Ni50Fe20Ga30 (NFG-1) and Ni45Fe25Ga30 (NFG-2) have been studied. With increasing Fe substitution in place of Ni atoms, the valence electron concentration per unit cell (e/a) ratio decreased from 7.59 to 7.42. This decrease in e/a ratio results in increase T-c and saturation magnetization in NFG-2 compared to NFG-1. Photoelectron spectroscopy (PES) measurements have been carried out at 20 K and 300 K for both the samples. A comparison of the calculated (first principles) and the measured density of states (by PES) show that NFG-1 undergoes a martensite phase transition, whereas no such transition is observed for NFG-2.
- リンク情報
- ID情報
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- DOI : 10.1063/1.4980592
- ISSN : 0094-243X
- Web of Science ID : WOS:000412824400414