A giant magnetic-field-induced strain (MFIS) of -3100 ppm has been obtained in Heusler alloy Ni52Mn22.2Ga25.8 single crystal in the [001] direction at a temperature from 23 to 31 degrees C. This MFIS reaches saturation in an applied field about 6 kOe, and exhibits the same amplitude with an opposite sign while the field is perpendicular to the samples. According to a previous model, this MFIS associates with the twin boundary motion. The martensitic self-strain has been found to be 2%, implying a preferential orientation of martensite variants. Results related to the magnetic properties are discussed. (C) 1999 American Institute of Physics. [S0003-6951(99)02545-0].
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Univ Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, Brazil
Mendonca, A. A.
Jurado, J. F.
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Univ Nacl Colombia, Dept Fis & Quim, Lab Propiedades Term Dielect Compositos, Manizales 127, ColombiaUniv Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, Brazil
Jurado, J. F.
Stuard, S. J.
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Univ Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, Brazil
Stuard, S. J.
Silva, L. E. L.
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Univ Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, Brazil
Silva, L. E. L.
Eslava, G. G.
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Univ Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, Brazil
Eslava, G. G.
Cohen, L. F.
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Imperial Coll London, Blackett Lab, Prince Consort Rd, London SW7 2BZ, EnglandUniv Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, Brazil
Cohen, L. F.
Ghivelder, L.
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Univ Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, Brazil
Ghivelder, L.
Gomes, A. M.
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Univ Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, Brazil
机构:
College of Sciences, Shanghai University, Shanghai, 200444, ChinaCollege of Sciences, Shanghai University, Shanghai, 200444, China
Li, Zhe
Jing, Chao
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College of Sciences, Shanghai University, Shanghai, 200444, ChinaCollege of Sciences, Shanghai University, Shanghai, 200444, China
Jing, Chao
Qiao, Yan-Fei
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College of Sciences, Shanghai University, Shanghai, 200444, ChinaCollege of Sciences, Shanghai University, Shanghai, 200444, China
Qiao, Yan-Fei
Zhang, Hao-Lei
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College of Sciences, Shanghai University, Shanghai, 200444, ChinaCollege of Sciences, Shanghai University, Shanghai, 200444, China
Zhang, Hao-Lei
Cao, Shi-Xun
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College of Sciences, Shanghai University, Shanghai, 200444, ChinaCollege of Sciences, Shanghai University, Shanghai, 200444, China
Cao, Shi-Xun
Zhang, Jin-Cang
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College of Sciences, Shanghai University, Shanghai, 200444, ChinaCollege of Sciences, Shanghai University, Shanghai, 200444, China
Zhang, Jin-Cang
Sun, Liang
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National Key Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing, 210093, ChinaCollege of Sciences, Shanghai University, Shanghai, 200444, China