Ground State and Magnetic Excitations of Spin-1/2 Kagome Antiferromagnets

• Ono Toshio

  Department of Physics, Osaka Prefecture University

Bibliographic Information

Other Title

• スピン1/2のカゴメ格子反強磁性体の基底状態と磁気励起
• スピン 1/2 ノ カゴメ ゴウシ ハン キョウジセイタイ ノ キテイ ジョウタイ ト ジキレイキ

Abstract

Ground states and magnetic excitations of spin-1/2 kagomé antiferromagnets (KAF) A₂Cu₃SnF₁₂ (A = Cs and Rb) were investigated by the magnetic measurements and neutron scattering experiments. For A = Cs, the system undergoes antiferromagnetic phase transition at T_N = 20K. On the other hand, for A = Rb, non-magnetic “pinwheel” VBS state is realized at the ground state which is assisted by the lattice distortion to form an exchange network consisted of four different magnetic interactions. The contrasting ground states between two compounds should be caused by the difference of the lattice distortion.

Journal

• hamon

  hamon 23 (1), 25-28, 2013

  The Japanese Society for Neutron Science

Keywords

• Kagomé lattice antiferromagnet
• Pinwheel VBS state

Details

• CRID: 1390564238045641216
• NII Article ID: 130007510507
• NII Book ID: AA11905115
• DOI: 10.5611/hamon.23.1_25
• ISSN: 1884636X
• ISSN: 1349046X
• NDL BIB ID: 024284461
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024284461
• Web Site: https://www.jstage.jst.go.jp/article/hamon/23/1/23_25/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed