A method based on magnetic moment measurement to identify the structural transition of quenched Fe1 -xGax (x = 0.15–0.30) alloys

doi:10.1088/1674-1056/20/7/077501

中国物理B ›› 2011, Vol. 20 ›› Issue (7): 77501-077501.doi: 10.1088/1674-1056/20/7/077501

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

A method based on magnetic moment measurement to identify the structural transition of quenched Fe_{1 -x}Ga_x (x = 0.15–0.30) alloys

朱小溪, 刘敬华, 徐翔, 蒋成保

School of Materials Science and Engineering, Beihang University, Beijing 100191, China

收稿日期:2010-11-18 修回日期:2011-03-28 出版日期:2011-07-15 发布日期:2011-07-15

A method based on magnetic moment measurement to identify the structural transition of quenched Fe_{1 -x}Ga_x (x = 0.15–0.30) alloys

Zhu Xiao-Xi(朱小溪), Liu Jing-Hua(刘敬华), Xu Xiang(徐翔), and Jiang Cheng-Bao(蒋成保)^†

School of Materials Science and Engineering, Beihang University, Beijing 100191, China

Received:2010-11-18 Revised:2011-03-28 Online:2011-07-15 Published:2011-07-15

摘要/Abstract

摘要： A method based on the measurement of Fe average atomic magnetic moment to identify the structural transition caused by the increase of Ga content in quenched Fe_{1 - x}Ga_x alloys (0.15 ≤ x ≤ 0.30) is proposed. The quenched Fe_{1 - x}Ga_x alloys show a change of the Fe average atomic magnetic moment from 2.25 μ_B to 1.78 μ_B and then to 1.58 μ_B, which corresponds to the structural transition from A2 to D0₃ and then to B2. The relationship between the structure and the magnetostriction is clarified, and the maximum magnetostriction appears in the A2 phase. The variation tendency of the magnetostriction is well characterized, which also reflects the structural transition.

Abstract: A method based on the measurement of Fe average atomic magnetic moment to identify the structural transition caused by the increase of Ga content in quenched Fe_{1 - x}Ga_x alloys (0.15 ≤ x ≤ 0.30) is proposed. The quenched Fe_{1 - x}Ga_x alloys show a change of the Fe average atomic magnetic moment from 2.25 μ_B to 1.78 μ_B and then to 1.58 μ_B, which corresponds to the structural transition from A2 to D0₃ and then to B2. The relationship between the structure and the magnetostriction is clarified, and the maximum magnetostriction appears in the A2 phase. The variation tendency of the magnetostriction is well characterized, which also reflects the structural transition.

Key words: magnetic moment, structure, magnetostrictions, Fe–Ga alloy

中图分类号: (Saturation moments and magnetic susceptibilities)

75.30.Cr

75.50.Bb (Fe and its alloys)

朱小溪, 刘敬华, 徐翔, 蒋成保. A method based on magnetic moment measurement to identify the structural transition of quenched Fe_{1 -x}Ga_x (x = 0.15–0.30) alloys[J]. 中国物理B, 2011, 20(7): 77501-077501.

Zhu Xiao-Xi(朱小溪), Liu Jing-Hua(刘敬华), Xu Xiang(徐翔), and Jiang Cheng-Bao(蒋成保). A method based on magnetic moment measurement to identify the structural transition of quenched Fe_{1 -x}Ga_x (x = 0.15–0.30) alloys[J]. Chin. Phys. B, 2011, 20(7): 77501-077501.

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A method based on magnetic moment measurement to identify the structural transition of quenched Fe_{1 -x}Ga_x (x = 0.15–0.30) alloys

A method based on magnetic moment measurement to identify the structural transition of quenched Fe_{1 -x}Ga_x (x = 0.15–0.30) alloys

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