An interpretation of martensitic transformation in L1[2]-type Fe3Pt from its electronic structure
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- Yamamoto Takuya
- Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University
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- Yamamoto Masataka
- Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University
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- Fukuda Takashi
- Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University
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- Kakeshita Tomoyuki
- Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University
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- Akai Hisazumi
- Department of Physics, Graduate School of Science, Osaka University
書誌事項
- タイトル別名
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- An Interpretation of Martensitic Transformation in L1<SUB>2</SUB>-Type Fe<SUB>3</SUB>Pt from Its Electronic Structure
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説明
Partly ordered Fe3Pt is one of ferromagnetic shape memory alloys exhibiting a large magnetic field-induced strain in its martensite phase formed by a second-order-like martensitic transformation from the L12-type structure to the so-called FCT martensite (L60-type structure). We have investigated the origin of this transformation from their electronic structures calculated in the present study. A characteristic feature in the electronic structure is the existence of a relatively high peak in the density of states of the minority spin band just below the Fermi energy. This peak splits into two peaks by tetragonal distortion, and one of them shifts to lower energy by the distortion, suggesting that the band Jahn-Teller effect is the main cause for the transformation.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 51 (5), 896-898, 2010
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282679227321088
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- NII論文ID
- 10026267471
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 10660590
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDLサーチ
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