Orbital Frustration and Resonating Valence Bond State in the Spin-1/2 Triangular Lattice LiNiO_{<b> 2</b>}

• Kitaoka Yoshio

  Department of Physical Science, Graduate School of EngineeringScience, Osaka University, Toyonaka, Osaka 560–8531 CREST, Japan Science and Technology Corporation (JST)

• Kobayashi Tatsuo

  Department of Physical Science, Graduate School of EngineeringScience, Osaka University, Toyonaka, Osaka 560–8531 Research Center for Materials Science at Extreme Conditions, OsakaUniversity, Toyonaka, Osaka 560–8531 CREST, Japan Science and Technology Corporation (JST)

• Koda Akihiro

  Department of Physical Science, Graduate School of EngineeringScience, Osaka University, Toyonaka, Osaka 560–8531 Research Center for Materials Science at Extreme Conditions, OsakaUniversity, Toyonaka, Osaka 560–8531

• Wakabayashi Hayato

  Department of Physical Science, Graduate School of EngineeringScience, Osaka University, Toyonaka, Osaka 560–8531

• Niino Yoshihiro

  Department of Physical Science, Graduate School of EngineeringScience, Osaka University, Toyonaka, Osaka 560–8531

• Yamakage Hirokazu

  Department of Physical Science, Graduate School of EngineeringScience, Osaka University, Toyonaka, Osaka 560–8531

• Taguchi Shinichiro

  Department of Physical Science, Graduate School of EngineeringScience, Osaka University, Toyonaka, Osaka 560–8531

• Amaya Kiichi

  Department of Physical Science, Graduate School of EngineeringScience, Osaka University, Toyonaka, Osaka 560–8531 CREST, Japan Science and Technology Corporation (JST)

• Yamaura Kazunari

  Institute for Chemical Research, Kyoto University, Uji, Kyoto–fu 611–0011

• Takano Mikio

  Institute for Chemical Research, Kyoto University, Uji, Kyoto–fu 611–0011 CREST, Japan Science and Technology Corporation (JST)

• Hirano Atushi

  Department of Chemistry, Faculty of Science, Kobe University, Kobe, Hyogo 657–8501

• Kanno Ryoji

  Department of Chemistry, Faculty of Science, Kobe University, Kobe, Hyogo 657–8501

書誌事項

タイトル別名

• Orbital Frustration and Resonating Valence Bond State in the Spin-1/2 Triangular Lattice LiNiO2.
• Orbital Frustration and Resonating Vale

抄録

From the ⁷Li nuclear magnetic resonance (NMR) and specific heatmeasurements of LiNiO₂, consisting of a spin-1/2 triangular lattice, itis demonstrated that the previously suggested spin-glass-like freezingbelow T_sg=8, K, which is caused by defects of Li ions, is not the trueground state, but rather a quantum disordered state is realized without aspin gap. This state is characterized by power-law behavior of thetemperature dependence of the specific heat below 0.5, K. A spin-liquidstate with short-range ferromagnetic correlations is suggested from newinsight into the frustration of orbital ordering for doubly degeneratee_g shells in the triangular lattice.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 67 (11), 3703-3706, 1998

  一般社団法人 日本物理学会

キーワード

• orbital degree of freedom
• quantum spin system
• triangular lattice
• resonating valence bond
• NMR
• specific heat

詳細情報

• CRID: 1390001204180545408
• NII論文ID: 210000101246
• NII論文ID: 110001970679
• NII論文ID: 130004536377
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.67.3703
• BIBCODE: 1998JPSJ...67.3703K
• COI: 1:CAS:528:DyaK1cXnvFyrsLY%3D
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 4611434
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4611434
• Web Site: https://journals.jps.jp/doi/pdf/10.1143/JPSJ.67.3703
• 本文言語コード: en
• データソース種別:
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