GROUND-STATE PHASE-DIAGRAM OF THE SPIN 1/2 ALTERNATING HEISENBERG CHAIN WITH ANISOTROPY ON THE ANTIFERROMAGNETIC BOND

被引：25

作者：

HIDA, K

机构：

[1] Department of Physics, College of Liberal Arts, Saitama University, Urawa

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1993年 / 62卷 / 05期

关键词：

ALTERNATING HEISENBERG CHAIN; HALDANE STATE; STRING ORDER;

D O I：

10.1143/JPSJ.62.1463

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ground state of the alternating spin-1/2 Heisenberg chain is studied with anisotropy on the antiferromagnetic bond. This model reduces to the spin-1 XXZ chain if the isotropic bond is ferromagnetic and infinitely strong. The ground-state phase diagram is determined by the numerical diagonalization of finite-size systems. The results are consistent with the series expansion results by Yamanaka, Hatsugai and Kohmoto, and confirms the qualitative phase diagram predicted by Kohmoto and Tasaki.

引用

页码：1463 / 1465

页数：3

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