Dramatic electron paramagnetic resonance change in compensated Ge : As at the metal-insulator transition

Authors
Veinger, AI Zabrodskii, AG Tisnek, TV
Citation
Ai. Veinger et al., Dramatic electron paramagnetic resonance change in compensated Ge : As at the metal-insulator transition, PHYSICA B, 284, 2000, pp. 1671-1672
Citations number
3
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
284
Year of publication
2000
Part
2
Pages
1671 - 1672
Database
ISI
SICI code
0921-4526(200007)284:<1671:DEPRCI>2.0.ZU;2-5
Abstract
Dramatic behavior of electron paramagnetic resonance (EPR) has been found a t the metal-insulator transition (MI) in compensated Ge:As. EPR spectrum of the metallic samples is characterized by Dysonian line shape with the widt h increasing with the compensation. In the insulating samples the line is s plit into two when the temperature is lower than 4.1 K. The nature of the o bserved phenomenon is discussed. (C) 2000 Elsevier Science B.V. All rights reserved.