Quantum transfer-matrix approach to S=1 antiferromagnetic chains at finite temperatures

被引：21

作者：

Kamieniarz, G ^{[1
]}

Matysiak, R ^{[1
]}

DAuria, AC ^{[1
]}

Esposito, F ^{[1
]}

Esposito, U ^{[1
]}

机构：

[1] UNIV NAPLES,DIPARTIMENTO SCI FIS,I-80125 NAPLES,ITALY

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.56.645

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The quantum transfer-matrix method (QTM) has been applied to study the finite-temperature static properties of the spin S = 1 antiferromagnetic Heisenberg chains in a wide range of the single-ion anisotropy and temperatures. The high-resolution QTM simulation data are obtained for the zero-field susceptibility, specific heat, as well as for the field-dependent magnetization. The microscopic parameters of a number of red quasi-one-dimensional compounds are found from fitting procedures, some theoretical approaches are numerically verified and low-temperature extensions of high-temperature series are given in terms of Chebyshev polynomials.

引用

页码：645 / 653

页数：9

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