Temperature Dependence of the ESR Line Width in One-Dimensional S=1/2 Antiferromagnet CuCl_2・2NC_5H_5

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概要

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• The ESR line width of a typical 1dH S=1/2 AF CuCl_2・2NC_5H_5 has been measured between 1.3 and 300 K. As temperature is lowered the width anomalously decreases down to 5 K with an approximated relation ΔH∝XT and it turns to increase with a relation ΔH∝T^<-1.2>. It is suggested that the unusual behaviors can be understood by considering the dominant role of the q=0 fluctuations at higher temperatures and also of the q=K_0 fluctuations at lower temperatures in the spin dynamics for S=1/2 AF chains. The critical broadening for 3d ordering will appear at temperatures much nearer T_N.

• 社団法人日本物理学会の論文
• 1975-07-15

著者

• Ajiro Yoshitami

  Department Of Applied Physics Faculty Of Engineering Fukui University

• Haseda Taiichiro

  Department Of Applied Physics Fuculty Of Engineering Ibaraki University

• Yamada Tetsuo

  Department Of Human Pathology Tokyo Medical And Dental University

• MATSUKAWA Shun-ichi

  Department of Physics, Kyoto University

• Yamada Tetsuo

  Department Of Applied And Environmental Chemistry Kitami Institute Of Technology

• Yamada Tetsuo

  Department Of Chemistry Kyoto University

• Matsukawa Shun-ichi

  Department Of Physics Kyoto University:(present Address) The Central Research Lab. Shrp Co. Ltd.

• Matsukawa Shun-ichi

  Department Of Physics Faculty Of Science Kyoto University

• Haseda Taiichiro

  Department Of Material Physics Osaka University

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