Susceptibility, Magnetization Process and ESR Studies on the Helical Spin System RbCuCl_3 : Condensed Matter: Electronic Properties, etc.

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概要

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• The static and dynamic magnetic properties of an S = 1/2 stacked triangular antiferromagnet RbCuCl_3 with a helical spin structure due to lattice distortion were investigated by magnetic susceptibility, high-field magnetization process and ESR measurements. The magnetic susceptibilities were analyzed by high-temperature expansion approximation in terms of ferromagnetic intrachain coupling and the antiferromagnetic interchain coupling. The magnetization saturates at H_s. ≈ 66.8 T at 1.5 K, the value of which is twice that of CsCuCl_3. A small magnetization jump indicative of a phase transition was observed at H_c = 21.2 T ≈ (1/3)H_s for H ⊥ c. ESR modes observed for H ‖c are well described by the calculation based on the helical spin structure. From the present measurements, the ferromagnetic intrachain and two kinds of antiferromagnetic interchain exchange interactions, and the planar anisotropy energy were determined as J_0/k_B = 25.7K, J_1/k_B = -10.6K, J'_1/k_B = -17.4K, and △J_0/k_B = -0.45K, respectively.

• 社団法人日本物理学会の論文
• 2001-03-15

著者

• Narumi Yasuo

  Crest Japan Science And Technology:research Center For Materials Science At Extreme Conditions Osaka

• TANAKA Hidekazu

  Department of Natural History Sciences, Faculty of Science, Hokkaido University

• Narumi Yasuo

  Crest Japan Science And Technology

• MOTOKAWA Mitsuhiro

  Institute for Materials Research, Tohoku University

• MARUYAMA Syuji

  Department of Physics, Tokyo Institute of Technology, Oh-okayama

• KIND0 Koichi

  CREST, Japan Science and Technology

• NOJIRI Hiroyuki

  CREST, Japan Science and Technology

• MOTOKAWA Mitsuhiro

  CREST, Japan Science and Technology

• NAGATA Kazukiyo

  Department of Physics, Faculty of Engineering, Kanagawa University

• 永田 一清

  Univ. Electro‐communications Tokyo

• Nojiri Hiroyuki

  Crest Institute For Materials Research Tohoku University

• Nojiri Hiroyuki

  Crest Japan Science And Technology:institute For Material Research Tohoku University

• MOTOKAWA Mitsuhiro

  Department of Physics,Faculty of Science,Kobe University

• Motokawa M

  Tohoku Univ. Sendai

• Motokawa Mitsuhiro

  Tohoku Univ. Sendai Jpn

• Motokawa Mitsuhiro

  Department Of Mechanical Engineering Faculty Of Engineering And Resource Science Akita University

• Maruyama S

  Department Of Physics Tokyo Institute Of Technology Oh-okayama

• Hiraoka T

  Faculty Of Science And Engineering Saga University

• Kind0 Koichi

  Crest Japan Science And Technology:research Center For Materials Science At Extreme Conditions Osaka

• Nagata Kazukiyo

  Department Of Physics Faculty Of Engineering Kanagawa University

• Nagata Kazukiyo

  Department Of Physics Tokyo Institute Of Technology

• Nagata Kazukiyo

  Department Of Physics College Of Science Tokyo Institute Of Technology

• Motokawa Mitsuhiro

  Crest Japan Science And Technology:institute For Material Research Tohoku University

• Motokawa Mitsuhiro

  Faculty Of Science Kobe University

• Maruyama Syuji

  Department Of Physics Tokyo Institute Of Technology Oh-okayama

• Nagata Katsuaki

  Faculty Of Engineering Tamagawa Univ.

• Tanaka Hidekazu

  Department Of Internal Medicine Iii Osaka Medical College

• Masuzawa Masahiro

  Department Of Applied Physics Faculty Of Engineering Tohoku University

• Tanaka Hidekazu

  Department Of Earth And Planetary Sciences Faculty Of Science Tokyo Institute Of Technology

• Tanaka Hidekazu

  Department Of Chemistry And Chemical Biology Gunma University

• MOTOKAWA Mitsuhiro

  Department of Physics, Kobe University

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