Electronic origin of the negligible magnetostriction of an electric steel Fe1-xSix alloy: A density-functional study

Odkhuu Dorj; Seok Yun Won; Cheol Hong Soon

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Electronic origin of the negligible magnetostriction of an electric steel Fe1-xSix alloy: A density-functional study

机译：电工钢Fe1-xSix合金可忽略不计的磁致伸缩的电子起源：密度泛函研究

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To understand the negligible magnetostriction of Fe-Si alloys used as cores in electric transformers or motors, density-functional calculations were performed on the tetragonal magnetostriction coefficient, λ001, of Fe1-xSix (x ≤ 0.25) alloys as a function of x using the highly precise all-electron full-potential linearized augmented plane-wave method. It was found that the calculated magnetostriction coefficients closely reproduced experimental trends and the negligible magnetostriction near x = 0.111 originated from the mixed phases of A2, B2, and D03; each different atomic type of Fe of Fe0.889Si0.111 has a small and opposite contribution to the magnetostriction.

机译：为了了解在变压器或电动机中用作芯子的Fe-Si合金的磁致伸缩率可以忽略不计，我们对Fe1-xSix（x≤0.25）合金的四方磁致伸缩系数λ001随x的密度函数进行了计算，使用高精度全电子全电位线性化增强平面波方法。结果发现，计算出的磁致伸缩系数与实验趋势相吻合，x = 0.111附近的可忽略不计的磁致伸缩源于A2，B2和D03的混合相。 Fe0.889Si0.111的每种不同原子类型的Fe对磁致伸缩的贡献都较小且相反。

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来源
《Journal of Applied Physics》 |2012年第6期|p.1-7|共7页
作者
Odkhuu Dorj; Seok Yun Won; Cheol Hong Soon;
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作者单位

Department of Physics and Energy Harvest-Storage Research Center, University of Ulsan, Ulsan 680-749, South Korea;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种 eng
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Electronic origin of the negligible magnetostriction of an electric steel Fe1-xSix alloy: A density-functional study

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