THE SPIN-1/2 HEISENBERG-STAR WITH FRUSTRATION - GROUND-STATE AND THERMODYNAMICS

被引：1

作者：

VOIGT, A

RICHTER, J

KRUGER, SE

机构：

[1] Institut für Theoretische Physik, Universität Magdeburg, Magdeburg

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 1995年 / 99卷 / 3-4期

关键词：

05.50+q; 75.10Jm; 75.50Ee;

D O I：

10.1007/BF00752313

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate a spin 1/2 Heisenberg antiferromagnet (AFM) H = J(1) Sigma(i=1)(N) s(0)s(i) + J(2)H(R){s(i)} descibing a central spin which interacts with a surrounding medium H-R. We present general relations for the eigen values, the eigen dates and the spin correlation function and study the model an more detail for H-R Being either a linear chain or a Lieb-Mattis AFM. Additional do the ground state properties we calculate the full thermodynamics in the case of H-R being a Lieb-Mattis AFM. PACS-Numbers: 75.10Jm, 75.50Ee, 05.50+q

引用

页码：381 / 383

页数：3

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