Tuning of dynamic localization in coupled minibands: Signatures of a field-induced metal-insulator transition

Authors
Rivera, PH Schulz, PA
Citation
Ph. Rivera et Pa. Schulz, Tuning of dynamic localization in coupled minibands: Signatures of a field-induced metal-insulator transition, PHYS REV B, 61(12), 2000, pp. R7865-R7868
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
10980121 → ACNP
Volume
61
Issue
12
Year of publication
2000
Pages
R7865 - R7868
Database
ISI
SICI code
1098-0121(20000315)61:12<R7865:TODLIC>2.0.ZU;2-B
Abstract
We follow the evolution of dressed coupled minibands as a function of an ac field intensity, nonperturbatively, for a wide field frequency range. High and low frequency limits are characterized by two different dynamic locali zation regimes, clearly separated by a breakdown region in a quasienergy ma p. Signatures of a metal-insulator-like transition by means of a field-indu ced suppression of a Peierls-like instability are identified.