PHONONS AND SPIN-WAVES IN THE MAGNETIC SEMICONDUCTOR CHALCOPYRITE CUFES2

Authors
HARRIS MJ ZINKIN MP SWAINSON IP
Citation
Mj. Harris et al., PHONONS AND SPIN-WAVES IN THE MAGNETIC SEMICONDUCTOR CHALCOPYRITE CUFES2, Physical review. B, Condensed matter, 55(11), 1997, pp. 6957-6959
Citations number
9
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
55
Issue
11
Year of publication
1997
Pages
6957 - 6959
Database
ISI
SICI code
0163-1829(1997)55:11<6957:PASITM>2.0.ZU;2-Q
Abstract
We present the results of inelastic neutron-scattering measurements of the spin wave and phonon dispersion in the antiferromagnetic semicond uctor chalcopyrite CuFeS2. The spin waves are steeply dispersive, and are described well by a simple local-moment model that considers only nearest-neighbor interactions. The nearest-neighbor exchange energy is determined as 2.27(2) THz, and there is an anisotropy gap of 1.28(1) THz.