GROUND-STATE REAL-SPACE RENORMALIZATION FOR LINEAR-CHAIN HEISENBERG MODELS WITH ALTERNATION

被引：1
|
作者：
POSHUSTA, RD
KLEIN, DJ
MEKELBURGER, J
机构：
[1] TEXAS A&M UNIV SYST,GALVESTON,TX 77553
[2] INST THEORET CHEM,W-5300 BONN 1,GERMANY
来源：
PHYSICA A | 1991年 / 170卷 / 02期
关键词：
D O I：
10.1016/0378-4371(91)90044-D
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Ground-state energy estimates are made via real-space renormalization for linear-chain Heisenberg models of general site spins. The tendency for bond alternation (i.e., Peierls distortion or dimerization) is studied and is found to be obligatory only for the s = 1/2 model, which is thus placed in a different universality class than the other spins s greater-than-or-equal-to 1. Variational bounds which become exact either for large s or "strong" alternation are obtained for the ground-state energy.
引用
收藏
页码：265 / 277
页数：13
相关论文
共 50 条
  • [1] GROUND-STATE SPIN PAIRING OF GENERAL-SPIN LINEAR-CHAIN HEISENBERG MODELS
    ALEXANDER, SA
    KLEIN, DJ
    PHYSICAL REVIEW B, 1985, 31 (01): : 574 - 576
  • [2] REAL-SPACE RENORMALIZATION-GROUP METHOD FOR THE GROUND-STATE PROPERTIES OF QUANTUM-LATTICE MODELS
    SARKER, SK
    PHYSICAL REVIEW B, 1984, 30 (05): : 2752 - 2754
  • [3] GROUND-STATE OF AN ANTIFERROMAGNETIC ISOTROPIC LINEAR-CHAIN
    DAURIA, AC
    DECESARE, L
    ESPOSITO, U
    LETTERE AL NUOVO CIMENTO, 1977, 19 (16): : 607 - 610
  • [4] ESR STUDY ON THE GROUND-STATE PROPERTIES OF THE S = 1 LINEAR-CHAIN HEISENBERG-ANTIFERROMAGNET
    HAGIWARA, M
    KATSUMATA, K
    RENARD, JP
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1990, 90-1 : 225 - 226
  • [5] REAL-SPACE RENORMALIZATION FOR HEISENBERG MODELS ON 2-DIMENSIONAL LATTICES
    CHERANOVSKI, VO
    SCHMALZ, TG
    KLEIN, DJ
    JOURNAL OF CHEMICAL PHYSICS, 1994, 101 (07): : 5841 - 5846
  • [6] Real-space ground-state of a generalized Hubbard model
    Navarro, O
    Flores, E
    Avignon, M
    CURRENT PROBLEMS IN CONDENSED MATTER, 1998, : 73 - 78
  • [7] RENORMALIZATION-GROUP FOR THE LINEAR-CHAIN HEISENBERG-MODEL
    SCHMALZ, TG
    KLEIN, DJ
    CROATICA CHEMICA ACTA, 1993, 66 (01) : 185 - 192
  • [8] REAL-SPACE RENORMALIZATION-GROUP ANALYSIS OF THE S=2 ANTIFERROMAGNETIC HEISENBERG CHAIN
    NISHIYAMA, Y
    TOTSUKA, K
    HATANO, N
    SUZUKI, M
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1995, 64 (02) : 414 - 422
  • [9] GROUND-STATE FEATURES FOR HEISENBERG MODELS
    KLEIN, DJ
    JOURNAL OF CHEMICAL PHYSICS, 1982, 77 (06): : 3098 - 3100
  • [10] Functional renormalization group approach to SU(N) Heisenberg models: Real-space renormalization group at arbitrary N
    Buessen, Finn Lasse
    Roscher, Dietrich
    Diehl, Sebastian
    Trebst, Simon
    PHYSICAL REVIEW B, 2018, 97 (06)
12345