Temperature Dependence of Lattice Vibration Frequencies of KniF_3 in Connection with Antiferromagnetism

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概要

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• Temperature dependence of three infrared active modes of vibrations weremeasured for KNiF, powdered specimen. A characteristic temperature dependencewas observed for the highest mode, which is about 450 cm ', ctt room temperature.This mode is due to a bending motion of F-Ni-F bond, which is expected to modulatesuperexchange interaction between nearest neighboring Ni ions. Therefore theanomalous increase of the highest mode frequency was interpreted by superexchangeinteraction, which increases at lower temperatures.[lattice vibration, antiferromagnetism, superexchange, ionie crystals, far-in- ll frared spectroscopyl

• 社団法人日本物理学会の論文
• 1990-02-15

著者

• Tomono Y

  Department Of Physics Faculty Of Science And Technology Sophia University

• Tomono Yuzo

  Department Of Physics Sophia University

• TAKAOKA Tosihide

  Department of Physics,Faculty of Science and Technology,Sophia University

• YAJIMA Masaaki

  Department of Physics,Faculty of Science and Technology,Sophia University

• TANOKURA Yosiko

  Department of Physics,Faculty of Science and Technology,Sophia University

• JINDA Nan

  Department of Physics,Faculty of Science and Technology,Sophia University

• Yajima Masaaki

  Department Of Physics Faculty Of Science And Technology Sophia University

• Tanokura Yosiko

  Department Of Physics Faculty Of Science And Technology Sophia University

• Tomono Yuzo

  Department Of Physics Faculty Of Science And Technology Sophia University

• Jinda Nan

  Department Of Physics Faculty Of Science And Technology Sophia University

• Takaoka Tosihide

  Department Of Physics Faculty Of Science And Technology Sophia University

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• Temperature Dependence of Lattice Vibration Frequencies of KniF_3 in Connection with Antiferromagnetism
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