EFFECT OF CYCLIC 4-SPIN INTERACTION ON MAGNETIC RAMAN-SCATTERING

被引：9

作者：

HONDA, Y

KURAMOTO, Y

WATANABE, T

机构：

[1] Department of Applied Physics, Tohoku University, Sendai

来源：

PHYSICA C | 1991年 / 185卷 / pt 3期

关键词：

D O I：

10.1016/0921-4534(91)90873-W

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate influences of the cyclic 4-spin exchange interaction J(c) upon the magnetic Raman-scattering of high-T(c) oxides by an exact numerical method for 4 x 4 square lattice. The spectra computed with inclusion of J(c) agree with experimental results better than those obtained from the Heisenberg model. The nearest-neighbor exchange interaction J to be extracted from experimental spectrum becomes larger than that estimated by use of the Heisenberg model.

引用

页码：1493 / 1494

页数：2

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