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Magnetostriction of Fe81Ga19 oriented crystals |
Wang Zhi-Bin(王智彬), Liu Jing-Hua(刘敬华), and Jiang Cheng-Bao(蒋成保)† |
School of Materials Science and Engineering, Beihang University, Beijing 100191, China |
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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.
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Received: 17 December 2009
Revised: 02 June 2010
Accepted manuscript online:
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PACS:
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75.80.+q
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(Magnetomechanical effects, magnetostriction)
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81.10.Fq
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(Growth from melts; zone melting and refining)
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Fund: 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). |
Cite this article:
Wang Zhi-Bin(王智彬), Liu Jing-Hua(刘敬华), and Jiang Cheng-Bao(蒋成保) Magnetostriction of Fe81Ga19 oriented crystals 2010 Chin. Phys. B 19 117504
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