FIELD-THEORY TREATMENT OF THE HEISENBERG SPIN-1 CHAIN

被引：188

作者：

TSVELIK, AM

机构：

[1] University of Florida, Department of Physics, Gainesville

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.42.10499

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We suggest a new field-theory treatment of the Heisenberg spin-1 chain with a single-ion anisotropy as a theory of three Majorana (real) fermions. We calculate the static and dynamic magnetic susceptibilities. We show that our results are in a good agreement with the experimental data for NENP [Ni(C2H8N2)NO2ClO4] compound. In particular, we eliminate the reported contradiction between excitation gaps deduced from high-field magnetization measurements and neutron scattering. © 1990 The American Physical Society.

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页码：10499 / 10504

页数：6

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