|標題:||Electron dephasing near zero temperature: an experimental review|
|作者:||Lin, J. J.|
Li, T. J.
Zhong, Y. L.
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|
|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.|
|期刊:||JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN|
|Appears in Collections:||Articles|