MAGNON-PHONON INTERACTION AND DETERMINATION OF EXCHANGE CONSTANTS IN CSMNF3

被引：37

作者：

SEAVEY, MH

机构：

[1] Air Force Cambridge Research Laboratories, Office of Aerospace Research, L. G. Hanscom Field, Bedford

来源：

PHYSICAL REVIEW LETTERS | 1969年 / 23卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.23.132

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetoelastic waves in the flopped antiferromagnet CsMnF3 are observed by the parallel-pumping technique. From the magnetic field positions of the shear-wave and longitudinal-wave interactions and from the measured sound velocities the following values are deduced for the nearest-neighbor antiferromagnetic exchange constants in CsMnF3: J1=3.5 cm-1 and J2=3.2 cm-1. A reinterpretation of the magnon-sideband data observed by Saito in CsMnF3 is possible using the above exchange constants. © 1969 The American Physical Society.

引用

页码：132 / &

共 24 条

[1]

Bar'yakhtar V. G., 1968, Fizika Tverdogo Tela, V10, P2335

[2]

BARYAKHT.VG, 1969, FIZ TVERD TELA+, V10, P1837

[3] THE CRYSTAL STRUCTURE OF HEXAGONAL BARIUM TITANATE [J].