English  |  正體中文  |  简体中文  |  Items with full text/Total items : 54367/62174 (87%)
Visitors : 10047520      Online Users : 182
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTHU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    National Tsing Hua University Institutional Repository > 歷任校長 > 陳信雄 (1997-1998) > 期刊論文 >  Quantum Monte Carlo study of the spin-1/2 Heisenberg model


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/80744


    Title: Quantum Monte Carlo study of the spin-1/2 Heisenberg model
    Authors: Y.C. Chen;H.H. Chen;F. Lee
    教師: 陳信雄
    Date: 1991
    Publisher: American Physical Society
    Relation: PHYSICAL REVIEW B, American Physical Society, Volume 43, Issue 13, Part Part b, MAY 1 1991, Pages 11082-11087
    Keywords: LOW-TEMPERATURE
    SYSTEMS
    SIMULATION
    RENORMALIZATION
    PARTITION-FUNCTION
    FERROMAGNET
    S=1/2
    Abstract: Thermodynamic properties of the spin-1/2 Heisenberg ferromagnet are calculated by using Handscomb's Monte Carlo method. Several methods of analyses are used to determine critical properties of the model. For a square lattice we find that the susceptibility diverges exponentially at zero temperature. That is, chi approximately exp[b(J/k(B)T)] with the constant b = 4.5 +/- 0.5, which is lower than the prediction (b = 2-pi) of a modified spin-wave theory. For the simple-cubic lattice, we find that the critical temperature k(B)T(c)/J = 1.68 +/- 0.01, and the ratio of the exponents gamma/nu = 2.0 +/- 0.05, which are in good agreement with the estimates of the high-temperature series-expansion method.
    Relation Link: http://www.aps.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/80744
    Appears in Collections:[陳信雄 (1997-1998)] 期刊論文
    [物理系] 期刊論文

    Files in This Item:

    File SizeFormat
    42.pdf305KbAdobe PDF334View/Open


    在NTHUR中所有的資料項目都受到原著作權保護,僅提供學術研究及教育使用,敬請尊重著作權人之權益。若須利用於商業或營利,請先取得著作權人授權。
    若發現本網站收錄之內容有侵害著作權人權益之情事,請權利人通知本網站管理者(smluo@lib.nthu.edu.tw),管理者將立即採取移除該內容等補救措施。

    SFX Query

    與系統管理員聯絡

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback