EXPERIMENTAL-DETERMINATION OF MAGNETIC POLARITON DISPERSION-CURVES INFEF2

Authors
JENSEN MRF FEIVEN SA PARKER TJ CAMLEY RE
Citation
Mrf. Jensen et al., EXPERIMENTAL-DETERMINATION OF MAGNETIC POLARITON DISPERSION-CURVES INFEF2, Physical review. B, Condensed matter, 55(5), 1997, pp. 2745-2748
Citations number
18
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
55
Issue
5
Year of publication
1997
Pages
2745 - 2748
Database
ISI
SICI code
0163-1829(1997)55:5<2745:EOMPDI>2.0.ZU;2-X
Abstract
A series of high-resolution attenuated total reflection and reflectivi ty measurements in the far infrared are used to obtain experimental di spersion curves for bulk and surface magnetic polaritons in uniaxial a ntiferromagnets. In addition to bulk and surface modes, the individual spectra also allow identification of, to the best of our knowledge, p reviously unseen surface resonances. The spectra also show huge nonrec iprocity in infrared reflectivity at low fields, a feature unique to m agnetic systems.