Field-Induced Magnetic Phase Transition of FeRh_<1-x>Pd_x Alloy with Body-Centered Tetragonal Structure
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概要
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The magnetic state of FeRh_<1-x>Pd_x alloys was investigated under pulsed magnetic fields up to 400 kOe. The FeRh_<1-x>Pd_x alloys with the body-centered tetragonal (bct) structure exhibit three kinds of the magnetic phase transition with increasing temperature, depending on Pd composition : the antiferromagnetic (AF) - paramagnetic (PM) transition at the Neel temperature (0.25<x<0.53), the ferromagnetic (FM)-PM transition at the Curie temperatue (0.61<x<1.0), and the AF-FM-PM transition (0.53<x<0.61). The triple point is x=0.53 and T=370K. It was found that the FM state was induced from AF state by the application of high magnetic field. The critical field varies from 30 kOe to the field higher than 100 kOe with varying Pd composition. Interestingly, the induced ferromagnetic phase of FeRh_<1-x>Pd_x is different from that of equiatomic FeRh alloy in remaining even after decreasing fields to zero.
- 社団法人日本磁気学会の論文
- 1999-01-20
著者
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GOTO Tsuneaki
Institute for Solid State Physics,University of Tokyo
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MITAMURA Hiroyuki
Institute for Solid State Physics, University of Tokyo
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Shingo HANE
Mega Gauss Laboratory,The Omstotite for Solid State Physis,University of Tokyo
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Goto Tsuneaki
Institute For Solid State Physics The University Of Tokyo
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Mitamura Hiroyuki
Institute For Solid State Physics (issp) University Of Tokyo
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Yuasa Hiromi
Depertment of Physics, Faculty of Science and Thechnology, Keio University
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Takizawa Kaori
Depertment of Physics, Faculty of Science and Thechnology, Keio University
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Miyajima Hideki
Depertment of Physics, Faculty of Science and Thechnology, Keio University
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Hane Shingo
Institute of Solid State Physics, University of Tokyo
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Hane Shingo
Institute For Solid State Physics University Of Tokyo
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Hane Shingo
Institute Of Solid State Physics University Of Tokyo
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Shingo Hane
Mega Gauss Laboratory The Omstotite For Solid State Physis University Of Tokyo
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Hiura S
Hiroshima Univ. Higashi‐hiroshima Jpn
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Takizawa K
Depertment Of Physics Faculty Of Science And Thechnology Keio University
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Miyajima Hideki
Depertment Of Physics Faculty Of Science And Thechnology Keio University
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Goko Tatsuo
Department Of Quantum Matter Adsm Hiroshima University
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Yuasa Hiromi
Depertment Of Physics Faculty Of Science And Thechnology Keio University
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Goko T
Institute For Solid State Physics University Of Tokyo
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Takizawa Kaori
Depertment Of Physics Faculty Of Science And Thechnology Keio University
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Goto T
Institute Of Solid State Physics University Of Tokyo
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