Volume 39, Number 4, August II 1997
|Page(s)||419 - 424|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Absorption of surface acoustic waves by quantum dots: Discrete spectrum limit
Weizmann Institute of Science, Department of Condensed Matter
Physics, Rehovot 76100, Israel
2 School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
3 Department of Physics, University of Oslo, P. O. Box 1048, Blindern, 0316 Oslo, Norway
Accepted: 3 July 1997
The absorption of surface acoustic waves (SAWs) by an array of quantum dots in which the mean level spacing is larger than the sound frequency ω, the temperature T, and the phase breaking rate is considered. The direct and the intra-level (Debye) contributions to the SAW attenuation coefficient are evaluated, and it is shown that the sensitivity to weak magnetic fields and spin-orbit scattering ("weak localization effects”) is dramatically enhanced as compared to the case of a continuous spectrum, . It is argued that the non-invasive measurement of represents a new tool for the investigation of the temperature dependence of the energy relaxation rate, , and the phase breaking rate, , of isolated electronic systems.
PACS: 72.50.+b – Acoustoelectric effects / 73.20.Fz – Weak localization effects (e.g., quantized states)
© EDP Sciences, 1997
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.