Proton Spin Lattice Relaxation by Ising Spin Excitation in CoCl_2 2H_2O
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概要
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The nuclear relaxation of proton has been studied in an antiferromagnet CoCl_2 2H_2O (T_N=17.2 K) which is characterized by ferromagnetic linear chain of Ising-like spin S=1/2. With the external magnetic field applied along the spin axis, the field and temperature dependences of the nuclear relaxation time (T_1) were measured in the three metamagnetic (antiferro-, ferri- and ferro-magnetic) states. The experimental analysis was made by using a simple phenomenological model for the spin fluctuation in onedimensional Ising spin system. It was found that the proton nuclear relaxation in CoCl_2 2H_2O is closely related to the Ising spin excitation in its ferromagnetic linear chains.
- 社団法人日本物理学会の論文
- 1973-02-05
著者
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Goto Takao
Physics Laboratory School Of Liberal Arts And Sciences Kyoto University
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Goto Takao
Physics Laboratory College Of General Education Kyoto University
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Hirai Akira
Department Of Internal Medicine Chiba Municipal Hospital
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Haseda Taiichiro
Department Of Applied Physics Fuculty Of Engineering Ibaraki University
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Haseda Taiichiro
Department Of Physics Kyoto University
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Goto Takao
Physics Laborarory Colledge Fo Liberal Arts And Science Kyto Universiy
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Hirai Akira
Departent Of Materials Science And Engineering Faculty Of Engineering Kyushu Institute Of Technology
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