Nonlinear Magnetization of a Quasi-One-Dimensional Triangular-Lattice Antiferromagnet CsNiCl_3 up to 110 Tesla

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概要

• 論文の詳細を見る

• The magnetization process of a quasi-one-dimensional triangular-lattice antiferromagnet CsNiCl_3 has been investigated up to 110 T using a single-turn coil technique. The magnetization increases with upturned curvature and reaches a saturation value of 2.15 μ_B/Ni^<2+> around 73.5 T. From the saturation value and field, the g-value and the intrachain interaction J/k_B are determined as g=2.15 and J/k_B=-13.2 K by assuming that the interchain interaction is negligible. The magnetization for 1.5 K observed in low fields can quantitatively be explained by the spin-wave theory with the 1/S correction at zero temperature. The magnetization for 5 K in high fields coincides with the result of the quantum Monte Carlo simulation at finite temperature for the Heisenberg antiferromagnetic chain of S=1. This means that the quantum fluctuations in the three-dimensional ordered state dominate the magnetization process in low fields, whereas the characteristics of the Heisenberg antiferromagnetic chain do in high fields.

• 社団法人日本物理学会の論文
• 1995-08-15

著者

• AJIRO Yoshitami

  Department of Chemistry, Graduate School of Science, Kyoto University

• 網代 芳民

  Department Of Chemistry Kyoto University:crest Japan Science And Technology Corporation (jst)

• Ajiro Y

  Department Of Chemistry Graduate School Of Science Kyoto University

• ASANO Takayuki

  Department of Physics, Kyushu University

• GOTO Tsuneaki

  Institute for Solid State Physics,University of Tokyo

• Katori Aruga

  Institute for Solid State Physics, University of Tokyo

• Aruga Katori

  Institute For Solid State Physics The University Of Tokyo:(present)the Institute Of Physical And Che

• Asano T

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

• Goto T

  Institute For Solid State Physics University Of Tokyo

• Goto Tsuneaki

  Institute For Solid State Physics The University Of Tokyo

• Goto T

  Univ. Tokyo Chiba

• Asano Takayuki

  Depatment Of Applied Physics Fukui University

• Asano Takayuki

  Department Of Physics Faculty Of Science Kyushu University:crest Japan Science And Technology Agency

• Ajiro Yoshitami

  Department Of Applied Physics Faculty Of Engineering Fukui University

• Goto Tsuneaki

  The Institute Of Solid State Physics Tokyo University

• Asano Takayuki

  Department Of Agricultural And Environmental Biology Graduate School Of Agricultural And Life Scienc

• Taketani Akio

  The Graduate School Of Science And Technology Kobe University

• Katori Aruga

  Institute For Solid State Physics University Of Tokyo

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