Observation of the Condensation of Magnons in the Quasi-Two-Dimensional Planar Ferromagnet K_2CuF_4
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概要
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Magnetic field dependence of the neutron Bragg scattering as well as the diffusescattering intensities in K.CuF. has been observed as a function of temperature.It is found that about 42 '% of the observed Bragg scattering intensity is due toa giant fluctuation of spins which can be erased by very weak internal field. Thisfluctuation part is thought to be a new phase with condensation of magnons.The rest 58 % corresponds to the phase with conventional long range order.The critical points for these two phases are the same within the experimental errors.
- 社団法人日本物理学会の論文
- 1979-08-15
著者
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HIRAKAWA Kinshiro
Institute for Solid State Physics,University of Tokyo
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HIRAKAWA Kazuyoshi
Department of Electronics,Kyushu University
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Yoshizawa Hideki
The Institute For Solid State Physics The University Of Tokyo
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Hirakawa Kinshiro
The Institute For Solid State Physics The University Of Tokyo
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Hirakawa Kinshiro
The Institute For Solid State Physics University Of Tokyo
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Hirakawa Kinshiro
The Institute For State Physics The University Of Tokyo
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Hirakawa Kinshiro
The Institute Of Solid State Physics The University Of Tokyo
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Hirakawa Kinshiro
Instiute For Solid State Physics University Of Tokyo
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Hirakawa Kinshiro
Institure For Solid State Physics University Of Tokyo
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