45 research outputs found
Electron dephasing near zero temperature: an experimental review
The behavior of the electron dephasing time near zero temperature,
, has recently attracted vigorous attention. This renewed interest
is primarily concerned with whether should reach a finite or an
infinite value as 0. While it is accepted that should
diverge if there exists only electron-electron (electron-phonon) scattering,
several recent measurements have found that depends only very
weakly on temperature, if at all, when 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