Phase-breaking time variations with temperature and current in an open quantum dot array

Authors
Prasad, C Andresen, A Ge, F Bird, JP Ferry, DK Lin, LH Aoki, N Nakao, K Ochiai, Y Ishibashi, K Aoyagi, Y Sugano, T
Citation
C. Prasad et al., Phase-breaking time variations with temperature and current in an open quantum dot array, SUPERLATT M, 27(5-6), 2000, pp. 315-318
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SUPERLATTICES AND MICROSTRUCTURES
ISSN journal
07496036 → ACNP
Volume
27
Issue
5-6
Year of publication
2000
Pages
315 - 318
Database
ISI
SICI code
0749-6036(200005/06)27:5-6<315:PTVWTA>2.0.ZU;2-O
Abstract
Magnetic characterization of a quantum dot array was carried out to extract the phase-breaking time as a function of temperature and current. These me asurements indicate a saturation of the phase-breaking time at low temperat ure and low current. The phase-breaking time varies as 1/T for temperatures above 1 K, which can be attributed to carrier-carrier scattering processes . Variation of the phase-breaking time with current yields an estimate for the electron temperature. (C) 2000 Academic Press.