ESR in Hexagonal ABX_3 Type Antiferromagnets. II.KNiCl_3: Easy-Plane Anisotropy Case

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概要

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• We report the results of ESR and magnetic measurements on single crystals ofKNiC1, whose chemical unit cell at room temperature is described by enlarging that ofCsNiCl. to 8 a, 8 a, c, containing three - NiCl. - chains (two on the A-site andone on the B-site). The intrachain exchange interaction constant was estimated to beJ./ k.= - 15 K. The magnetic anisotropy was found to be the easy-plane type andD/k.= -0.86K. Three-dimensional ordering occurs at T.=S.2K. In the orderedstate an ESR mode which is unexplainable in terms of the usual two-sublattice modelwas observed. Introducing two kinds of interchain exchange interactions, J';' andJ';', and taking six sublattices, we investigate the normal modes for the motions ofthe sublattice magnetizations. The frequency-field diagram calculated withJ';'/k.= -1.3Xl0 'K and J';'/k.= -1.1X10 'K is in good agreement with theexperimental one.

• 社団法人日本物理学会の論文
• 1989-08-15

著者

• TANAKA Hidekazu

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

• NAGATA Kazukiyo

  Department of Physics, Faculty of Engineering, Kanagawa University

• Hasegawa Toshiaki

  Department of Physics, Faculty of Science, Tokyo Institute of Technology

• IIO Katsunori

  Department of Physics,Faculty of Science,Tokyo Institute of Technology

• KAAHWA Yusto

  Department of Physics,Faculty of Science,Tokyo Institute of Technology

• IGARASHI Masukazu

  Department of Physics,Faculty of Science,Tokyo Institute of Technology

• TERAOKA Soichiro

  Department of Physics,Faculty of Science,Tokyo Institute of Technology

• 永田 一清

  Univ. Electro‐communications Tokyo

• Hasegawa T

  Ehime Univ. Ehime

• Iio Katsunori

  Department Of Physics Graduate School Of Science And Engineering Tokyo Institute Of Technology

• Iio Katsunori

  Department Of Physics (cond. Mat. Phys.) Graduate School Of Science And Engineering Tokyo Institute

• Teraoka S

  Tokyo Inst. Of Technol. Tokyo

• Hasegawa T

  Tokyo Inst. Technol. Yokohama

• Kaahwa Yusto

  Department Of Physics Faculty Of Science Tokyo Institute Of Technology

• 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

• Iio Katsunori

  Department Of Physics Tokyo Institute Of Technology

• Hasegawa T

  Department Of Physics Faculty Of Science Kyoto University

• Igarashi M

  Department Of Applied Physics Gunma College Of Technology

• Nagata Katsuaki

  Faculty Of Engineering Tamagawa Univ.

• Tanaka Hidekazu

  Department Of Internal Medicine Iii Osaka Medical College

• Hasegawa T

  Miyazaki Univ. Miyazaki Jpn

• 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

• Igarashi Masukazu

  Department of Applied Physics,Gunma College of Technology

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