HOME    |    BROWSE    |    SEARCH    |    SUBSCRIPTION   |    SUBMISSION    |    REGISTRATION

Quick Search:
Author: Title/Abstract: Vol./No: Page:
PTP Online Top > Supplement (2000) > No.138
| Next Article >

Prog. Theor. Phys. Supplement No.138 (2000) pp. 513-514

[ Full Text PDF : FREE ACCESS (72K) ]

Magnetization Plateau in One-Dimensional Quantum Ferrimagnets

Tôru Sakai and Shoji Yamamoto*

Faculty of Science, Himeji Institute of Technology, Hyogo 678-1297, Japan
*Department of Physics, Okayama University, Okayama 700-8530, Japan

(Received October 11, 1999)

Abstract:

Quantum critical behavior in the magnetization process of alternating-spin chains is studied by the exact diagonalization and the size scaling technique based on the conformal field theory. The plateau at the spontaneous magnetization is revealed to vanish due to the anisotropy at the Kosterlitz-Thouless transition point in the ferromagnetic region. It is also found that the bond alternation creates a novel plateau as an essential quantum effect.


URL : http://ptp.ipap.jp/link?PTPS/138/513/
DOI : 10.1143/PTPS.138.513

[ Full Text PDF : FREE ACCESS (72K) ] Citation:

References:

  1. T. Sakai and S. Yamamoto, Phys. Rev. B60 (1999), 4053[APS].
    S. Yamamoto and T. Sakai, J. of Phys.: Cond. Mat. 11 (1999), 5175[IoP STACKS].
  2. M. Oshikawa, M. Yamanaka and I. Affleck, Phys. Rev. Lett. 78 (1997), 1984[APS].

[PTP HOME] [BROWSE] [SEARCH] [SUBSCRIPTION] [SUBMISSION] [REGISTRATION]

Copyright © Progress of Theoretical Physics 2013 All rights reserved.