Magneto-optical Kerr effect in LaX (X = S, Se and Te): evidence for interplay between 4f-states and plasma resonance

Authors
Salghetti-Drioli, F Wachter, P Degiorgi, L
Citation
F. Salghetti-drioli et al., Magneto-optical Kerr effect in LaX (X = S, Se and Te): evidence for interplay between 4f-states and plasma resonance, SOL ST COMM, 109(12), 1999, pp. 773-778
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
109
Issue
12
Year of publication
1999
Pages
773 - 778
Database
ISI
SICI code
0038-1098(1999)109:12<773:MKEIL(>2.0.ZU;2-X
Abstract
We report an optical and a magneto-optical study of the LaX series with X = S, Se and Te. The Kerr rotation is dominated by a sharp resonance occurrin g between 2 and 3 eV which is due to the interplay between the plasma reson ance and an electronic optical transition possibly involving f-states. We d iscuss our optical data in the perspective of the phenomenological classica l dispersion theory. (C) 1999 Elsevier Science Ltd. All rights reserved.