Neutron Scattering Study of Spin Dynamics at the Magnetic Phase Transition in Two-Dimensional Planar Ferromagnet K_2CuF_4
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概要
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Spin dynamics of K.CuF. has been studied by neutron scattering technique.The motivation of our study is to make an extention of the previous study byMoussa and Villain, because of the increasing interest in the nature of the transi-Lion which might be close to the Kosterlitz-Thouless (KT) type. The wave numberdependent magnon frequency and width are systematically measured as a functionof temperature and noticiable evolution of wave number dependent dynamicshas been observed. In a low wave number region, a steap decrease in magnonfrequency was observed at the transition supporting the above conjecture.
- 社団法人日本物理学会の論文
- 1983-12-15
著者
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HIRAKAWA Kinshiro
Institute for Solid State Physics,University of Tokyo
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Yoshizawa Hideki
Brookhavcn National Laboratory Upion:institute For Solid State Physics The University Of Tokyo
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Shirane G
Department Of Physics Brookhaven National Laboratory
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Yoshizawa H
Univ. Tokyo Ibaraki
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Yoshizawa H
Dept. Of Biology Matsumoto Dental College
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Shirane Gen
Brookhaven National Laboratory
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Kadowaki H
Tokyo Metroporitan Univ. Tokyo
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Kadowaki Hiroaki
Department Of Physics Tokyo Metroporitan University
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Kawanaka H
National Inst. Advanced Industrial Sci. And Technol. Ibaraki Jpn
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Hirakawa Kinshiro
Institute For Solid State Physics University Of Tokyo
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Shirane G.
Department of physics, Brookhaven National Laboratory
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D AXE
Brookhaven National Laboratory
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Kato Hideyuki
Department Of Physics Faculty Of Science Hokkaido University
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Shirane Gen
Brookhavcn National Laboratory Upion
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Hirakawa Kinshiro
Institure For Solid State Physics University Of Tokyo
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