Structural Characteristics and Magnetic Properties of La doped Fe-Ga Thin Films
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- Nishina R.
- Graduate School of Engineering, Tohoku University
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- Muroga S.
- Graduate School of Engineering, Tohoku University
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- Miyazaki T.
- Faculty of Engineering, Tohoku University
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- Endo Y.
- Graduate School of Engineering, Tohoku University Center for Science and Innovation in Spintronics (CSIS), Tohoku University
Bibliographic Information
- Other Title
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- La添加したFe-Ga薄膜における構造と磁気特性
Abstract
<p> This paper describes a study on the structural characteristics and magnetic properties of La doped Fe-Ga (Fe-Ga-La) thin films with a thickness of 50 nm. The Fe-Ga-La films showed a bcc polycrystalline structure regardless of the La content, and their crystallite size became smaller as the La content increased. Both soft magnetic properties and high-frequency magnetic properties were markedly improved in a range of La content above 4.6 at. %, which might be attributed to induced uniaxial magnetic anisotropy and magnetic inhomogeneity. In particular, the saturation magnetostriction of the films became maximum at a La content of 0.8 at. %, and its value was approximately 61.2 ppm. This result is similar to that of bulk Fe-Ga alloy with rare-earth doping. Thus, slight rare-earth doping plays an important role in the improvement of the saturation magnetostriction in Fe-Ga polycrystalline films.</p>
Journal
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- Transaction of the Magnetics Society of Japan Special Issues
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Transaction of the Magnetics Society of Japan Special Issues 8 (1), 10-14, 2024-05-01
The Magnetics Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390299993933043072
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- ISSN
- 24320471
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- Text Lang
- ja
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- Data Source
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- JaLC
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- Abstract License Flag
- Disallowed