Volume 47, Number 5, September I 1999
|Page(s)||608 - 614|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Low-temperature dephasing in disordered conductors: The effect of "” fluctuations
Weizmann Institute of Science, Department of Condensed Matter Physics IL-76100 Rehovot, Israel
2 Physics Department, Faculty of Science, Tokyo University Hongo, Bunkyo-ku, Tokyo 113 Japan
3 Dipartimento di Fisica, Università degli Studi di Roma "La Sapienza” Piazzale Aldo Moro 2, I-00185 Roma, Italy
Accepted: 5 July 1999
Electronic quantum effects in disordered conductors are controlled by the conduction electrons' dephasing rate, which is expected to vanish with the temperature. Consider the very intriguing recently reported apparent saturation of this dephasing rate in several systems at very low temperatures. While the "standard model” of a conductor with static defects can not have such an effect, allowing some dynamics of the defects may produce it.
PACS: 73.23.b – Mesoscopic systems / 72.10.d – Theory of electronic transport; scattering mechanisms
© EDP Sciences, 1999
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