Density Matrix Renormalization Group and Numerical Diagonalization Study on the Quantum Spin Nanotube in Magnetic Field

• SAKAI Toru

  Japan Atomic Energy Agency, SPring-8, and Department of Material Science, University of Hyogo, and JST TRIP

• SATO Masahiro

  Aoyama Gakuin University

• OKUNISHI Kouichi

  Depatment of Physics, Niigata University

• OKAMOTO Kiyomi

  Department of Physics, Tokyo Institute of Technology

• ITOI Chigak

  Department of Physics, Nihon University

Abstract

The magnetization process of the S=1/2 three-leg spin tube with an asymmetric exchange interaction in each triangle unit is investigated by the numerical exact diagonalization and the density matrix renormalization group calculation. It is found that the 1/3 magnetization plateau appears due to two different mechanisms depending on the asymmetry. The phase diagrams of the 1/3 plateau is presented. In addition some cusp-like anomalies are found in the magnetization curve.

Journal

• Progress in Nuclear Science and Technology

  Progress in Nuclear Science and Technology 2 (0), 30-33, 2011-10-01

  Atomic Energy Society of Japan

Keywords

• spin nanotube
• density matrix renormalization gourp
• numerical diagonalization
• spin gap
• spin liquid
• chirality

Details

• CRID: 1390851109291726464
• NII Article ID: 40019313855
• NII Book ID: AA12785802
• DOI: 10.15669/pnst.2.30
• NDL BIB ID: 023756678
• ISSN: 21854823
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023756678
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed