Study of Staggered Magnetization in the Spin-S Square-Lattice Heisenberg Model Using Spiral Boundary Conditions

被引：4

作者：

Kadosawa, Masahiro ^{[1
]}

Nakamura, Masaaki ^{[2
]}

Ohta, Yukinori ^{[1
]}

Nishimoto, Satoshi ^{[3
,4
]}

机构：

[1] Chiba Univ, Dept Phys, Chiba 2638522, Japan

[2] Ehime Univ, Dept Phys, Matsuyama, Ehime 7908577, Japan

[3] Tech Univ Dresden, Dept Phys, D-01069 Dresden, Germany

[4] IFW Dresden, Inst Theoret Solid State Phys, D-01171 Dresden, Germany

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2023年 / 92卷 / 02期

关键词：

LONG-RANGE ORDER; GROUND-STATE; TEMPERATURE PROPERTIES; ANTIFERROMAGNET; XXZ; PARAMETERS; EXPANSION;

D O I：

10.7566/JPSJ.92.023701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose an efficient numerical method to obtain local order parameter in two-dimensional systems using spiral boundary conditions. As a benchmark, we first estimate the magnitude of staggered magnetization for the S = 1=2 XXZ Heisenberg model on a square lattice in the whole range of the XXZ anisotropy by density-matrix renormalization group technique. The validity of our method is confirmed by comparing our results with the previous analytical and numerical studies. Then, as further demonstration, we apply our method to obtain the staggered magnetization for the higher-spin cases from S = 1 to 6. The accuracy of the obtained results is validated using the series expansion and the spin-wave theory.

引用

页数：5

共 47 条

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