EFFECTS OF INTERCHAIN EXCHANGE INTERACTIONS ON ESR MODES IN AXIAL TRIANGULAR ANTIFERROMAGNETS

被引：7

作者：

KAMBE, T ^{[1
]}

TANAKA, H ^{[1
]}

NAGATA, K ^{[1
]}

机构：

[1] NAGOYA UNIV, COLL GEN EDUC, DEPT PHYS, CHIKUSA KU, NAGOYA 46401, JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1993年 / 62卷 / 10期

关键词：

AXIAL TRIANGULAR ANTIFERROMAGNETS; ELECTRON SPIN RESONANCE; DIAGONAL INTERCHAIN INTERACTION; CSMNI3;

D O I：

10.1143/JPSJ.62.3388

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the effects of a diagonal interchain interaction J2 on the ESR modes in the ABX3-type antiferromagnets with easy-axis anisotropy.The static properties are described by replacing the conventional interchain interaction J1 by J1-2J2. However, because of the phase difference between the sublattice magnetizations, J2 coupling produces marked effects on some ESR modes in cooperation with J1 coupling. Large separation between the omega1-mode and EPR line for H perpendicular-to c and omega2- and omega3-modes for H//c (H>H(SF)) can be derived by maintaining consistency with the canting angle of spins from the c-axis and the spin wave dispersion at zero field. ESR measurements in CsMnI3 are reported. The frequency-field diagram obtained is described well by the model involving J2 coupling.

引用

页码：3388 / 3391

页数：4

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