ANALYTICAL METHODS AND COMPUTER CALCULATIONS OF XY MODEL WITH IMPURITY SPIN

被引：13

作者：

OGUCHI, T

ONO, I

机构：

[1] Department of Physics, Tokyo Metropolitan University, Tokyo, 158, Fukazawa, Setagaya-ku

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1969年 / 26卷 / 06期

关键词：

D O I：

10.1143/JPSJ.26.1378

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The one dimensional XY model of spin 1/2 is discussed by transforming the spin operators to the Fermi operators. This method can be applied to the XY model with an impurity spin. In that case a pair of localized exciton (or a kind of magnon) levels are obtained. The energy of states can be determined by distributing the excitons over two sets of exciton levels which depend on whether the number of excitons is even or odd. The energy levels of states are calculated by the computer for small rings of 4, 6 and 8 spins. The results can be perfectly understood by the theory. © 1969, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

引用

页码：1378 / +

页数：1

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