2-MAGNON ABSORPTION IN ND2CUO4

Authors
SOBOLEV VL PASHKEVICH YG HUANG HL VITEBSKII IM BLINKIN VA
Citation
Vl. Sobolev et al., 2-MAGNON ABSORPTION IN ND2CUO4, Journal of applied physics, 76(10), 1994, pp. 6892-6894
Citations number
11
Categorie Soggetti
Physics, Applied
Journal title
Journal of applied physics → ACNP
ISSN journal
00218979
Volume
76
Issue
10
Year of publication
1994
Part
2
Pages
6892 - 6894
Database
ISI
SICI code
0021-8979(1994)76:10<6892:2AIN>2.0.ZU;2-3
Abstract
The two-magnon absorption of the electromagnetic waves in the exchange noncollinear magnetic phase of four-sublattice antiferromagnet Nd2CuO 4 has been considered. The spin-wave density of states and the frequen cy dependencies of the absorption coefficient have been calculated. It is shown that the intensity of the two-magnon absorption by exchange magnons in exchange-noncollinear magnets is substantially larger than in magnets collinear in the exchange approximation.