中国物理B ›› 2010, Vol. 19 ›› Issue (11): 117504-117801.doi: 10.1088/1674-1056/19/11/117504

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Magnetostriction of Fe81Ga19 oriented crystals

王智彬, 刘敬华, 蒋成保   

  1. School of Materials Science and Engineering, Beihang University, Beijing 100191, China
  • 收稿日期:2009-12-17 修回日期:2010-06-02 出版日期:2010-11-15 发布日期:2010-11-15
  • 基金资助:
    Project supported by the Key Program of the National Natural Science Foundation of China (Grant No. 50531010), National Science Fund for Distinguished Young Scholars of China (Grant No. 50925101), Science Fund for Creative Research Groups of the National Natural Science Foundation of China (Grant No. 50921003).

Magnetostriction of Fe81Ga19 oriented crystals

Wang Zhi-Bin(王智彬), Liu Jing-Hua(刘敬华), and Jiang Cheng-Bao(蒋成保)†   

  1. School of Materials Science and Engineering, Beihang University, Beijing 100191, China
  • Received:2009-12-17 Revised:2010-06-02 Online:2010-11-15 Published:2010-11-15
  • Supported by:
    Project supported by the Key Program of the National Natural Science Foundation of China (Grant No. 50531010), National Science Fund for Distinguished Young Scholars of China (Grant No. 50925101), Science Fund for Creative Research Groups of the National Natural Science Foundation of China (Grant No. 50921003).

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摘要： The effect of the orientation on the magnetostriction in Fe81Ga19 alloy has been investigated experimentally and theoretically. The Fe81Ga19 [001] and [110] oriented crystals were prepared and the magnetostriction was measured under different pre-stress. The saturation magnetostriction of the [001] oriented crystal increases from 170×10-6 to 330×10-6 under the pre-stress from 0 to 50 MPa. The [110] oriented crystal has a saturation magnetostriction from 20×10-6 to 140×10-6 with the compressive pre-stress from 0 to 40 MPa. The magnetostriction of [001] and [110] oriented crystals has been simulated based on the phenomenological theory. The domain rotation path has been determined and the resultant magnetostriction calculated under different pre-stress. The experimental and simulated results both show that the [001] oriented crystal exhibits better magnetostriction than [110] oriented crystal. The enhancement of the saturation magnetostriction by the compressive pre-stress in the [110] oriented crystal is higher than that in the [001] oriented crystal.

Abstract: The effect of the orientation on the magnetostriction in Fe81Ga19 alloy has been investigated experimentally and theoretically. The Fe81Ga19 [001] and [110] oriented crystals were prepared and the magnetostriction was measured under different pre-stress. The saturation magnetostriction of the [001] oriented crystal increases from 170×10-6 to 330×10-6 under the pre-stress from 0 to 50 MPa. The [110] oriented crystal has a saturation magnetostriction from 20×10-6 to 140×10-6 with the compressive pre-stress from 0 to 40 MPa. The magnetostriction of [001] and [110] oriented crystals has been simulated based on the phenomenological theory. The domain rotation path has been determined and the resultant magnetostriction calculated under different pre-stress. The experimental and simulated results both show that the [001] oriented crystal exhibits better magnetostriction than [110] oriented crystal. The enhancement of the saturation magnetostriction by the compressive pre-stress in the [110] oriented crystal is higher than that in the [001] oriented crystal.

Key words: magnetostriction, orientation, Fe81Ga19 alloy, simulation

中图分类号:  (Magnetomechanical effects, magnetostriction)

  • 75.80.+q
81.10.Fq (Growth from melts; zone melting and refining)