Magnetorefractive effect in granular films with tunneling magnetoresistance

Authors
Bykov, IV Gan'shina, EA Granovskii, AB Gushchin, VS
Citation
Iv. Bykov et al., Magnetorefractive effect in granular films with tunneling magnetoresistance, PHYS SOL ST, 42(3), 2000, pp. 498-502
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
42
Issue
3
Year of publication
2000
Pages
498 - 502
Database
ISI
SICI code
1063-7834(2000)42:3<498:MEIGFW>2.0.ZU;2-4
Abstract
The magnetorefractive effect, consisting in a change of reflectivity under magnetization, has been observed in granular Co-Al-O metal-insulator magnet ic films with tunneling magnetoresistance in the IR region. It is shown tha t this effect manifests itself most clearly in interference conditions, is even in magnetization, and reaches as high as 0.8% at frequencies of about 1100 cm(-1), which exceeds both the linear equatorial Kerr and the even ori entational magneto-optic effects by an order of magnitude. (C) 2000 MAIK "N auka/Interperiodica".