Z2 Vortex-Induced Broadening of the EPR Linewidth in the Two-Dimensional Triangular Lattice Antiferromagnets,HCrO2 and LiCrO2

• Ajiro Yoshitami

  Department of Chemistry, Faculty of Science, Kyoto University

• Kikuchi Hikomitsu

  Department of Chemistry, Faculty of Science, Kyoto University

• Sugiyama Sh\={u}-ichiro

  Department of Chemistry, Faculty of Science, Kyoto University

• Nakashima Takeshi

  Department of Chemistry, Faculty of Science, Kyoto University

• Shamoto Shin-ichi

  Institute for Chemical Research, Kyoto University

• Nakayama Noriaki

  Institute for Chemical Research, Kyoto University

• Kiyama Masao

  Institute for Chemical Research, Kyoto University

• Yamamoto Naoichi

  College of Liberal Arts, Kyoto University

• Oka Yoshio

  College of Liberal Arts, Kyoto University

書誌事項

タイトル別名

• Z<SUB>2</SUB> Vortex-Induced Broadening of the EPR Linewidth in the Two-Dimensional Triangular Lattice Antiferromagnets, HCrO<SUB>2</SUB> and LiCrO<SUB>2</SUB>
• Z2 Vortex Induced Broadening of the EPR

抄録

The title compounds are the family of the AMO₂-type (R\bar3m) crystal which has a pronounced layer structure and are promising candidates for the two-dimensional Heisenberg triangular lattice antiferromagnet (2DH TAL–AF). The interesting observation is that a singular point of the EPR signal is located around T_KM=0.66JS² for the critical temperature of phase transition associated with the pairing-dissociation of the Z₂ vortices, suggesting the present system behaves as 2DH TAL–AF down to very close to T_KM. The EPR linewidth exhibits Z₂ vortex-induced broadening above the critical temperature which is inversely proportional to the thermally excited vortex density, n_v∝exp (−E_v⁄k_BT) with the activation energy E_v≅4k_BT_KM.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 57 (7), 2268-2271, 1988

  一般社団法人 日本物理学会

キーワード

• General Physics and Astronomy

詳細情報

• CRID: 1390001204186313216
• NII論文ID: 110001968229
• NII論文ID: 130003899847
• NII論文ID: 210000094066
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.57.2268
• BIBCODE: 1988JPSJ...57.2268A
• COI: 1:CAS:528:DyaL1cXmtVent7o%3D
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 3191293
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3191293
• Web Site: http://journals.jps.jp/doi/pdf/10.1143/JPSJ.57.2268
• 本文言語コード: en
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