QUASI-STATIC AND DYNAMIC INTERACTION OF HIGH-FREQUENCY FIELDS WITH MINIBAND ELECTRONS IN SEMICONDUCTOR SUPERLATTICES

Authors
WINNERL S SCHOMBURG E GRENZER J REGL HJ IGNATOV AA SEMENOV AD RENK KF PAVELEV DG KOSCHURINOV Y MELZER B USTINOV V IVANOV S SCHAPOSCHNIKOV S KOPEV PS
Citation
S. Winnerl et al., QUASI-STATIC AND DYNAMIC INTERACTION OF HIGH-FREQUENCY FIELDS WITH MINIBAND ELECTRONS IN SEMICONDUCTOR SUPERLATTICES, Physical review. B, Condensed matter, 56(16), 1997, pp. 10303-10307
Citations number
18
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
16
Year of publication
1997
Pages
10303 - 10307
Database
ISI
SICI code
0163-1829(1997)56:16<10303:QADIOH>2.0.ZU;2-2
Abstract
We studied the interaction of high-frequency (HF) fields with the mini band electrons in semiconductor superlattices that show (at room tempe rature) negative differential conductance. We observed a field-induced reduction of current through the superlattices, with a different bias dependence for fields below and above a characteristic frequency (1 T Hz). An analysis based on Bloch oscillations, indicating that the elec trons relaxed within one cycle of the HF field (quasistatic interactio n) or followed the field adiabatically (dynamic interaction), allows o ne to extract the intraminiband relaxation time (10(-13) s). [S0163-18 29(97)06539-9].