標題: | Electron dephasing near zero temperature: an experimental review |
作者: | Lin, J. J. Li, T. J. Zhong, Y. L. 電子物理學系 物理研究所 Department of Electrophysics Institute of Physics |
關鍵字: | electron dephasing;saturation of dephasing time;mesoscopic structures;disordered metals;magnetic scattering;two-level systems;weak localization |
公開日期: | 1-二月-2003 |
摘要: | The behavior of the electron dephasing time near zero temperature, tau(0)(phi), has recently attracted vigorous attention. This renewed interest is primarily concerned with whether tau(0)(phi) should reach a finite or an infinite value as T -> 0. While it is accepted that tau(0)(phi) should diverge if there exists only electron-electron (electron-phonon) scattering, several recent measurements have found that tau(0)(phi) depends only very weakly on temperature, if at all, when T is sufficiently low. This article discusses the current experimental status of "the saturation problem", and concludes that the origin(s) for this widely observed saturation are still unresolved. |
URI: | http://hdl.handle.net/11536/28107 |
ISSN: | 0031-9015 |
期刊: | JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN |
Volume: | 72 |
Issue: | |
結束頁: | |
顯示於類別: | 期刊論文 |