Journal article
Paramagnetic spin waves in the one-dimensional antiferromagnet CsMnBr3
Abstract
CsMnBr3 is a quasi-one-dimensional hexagonal antiferromagnet. We report on inelastic neutron scattering measurements that show well-defined spin-wave modes at a temperature of 15 K, which is almost twice the Néel temperature for three-dimensional ordering. The spin waves at large wave vectors have similar energies to those found in the three-dimensional ordered state at 4 K. At small wave vectors a mode is observed with energy 1.8 meV at zero …
Authors
Collins MF; Gaulin BD
Journal
Journal of Applied Physics, Vol. 55, No. 6, pp. 1869–1870
Publisher
AIP Publishing
Publication Date
March 15, 1984
DOI
10.1063/1.333503
ISSN
0021-8979