Electron dephasing in homogeneous and inhomogeneous indium tin oxide thin films
Electron dephasing in homogeneous and inhomogeneous indium tin oxide thin films
复制标题
均匀和非均匀氧化铟锡薄膜中的电子相移
DOI:
10.1103/physrevb.85.104204
复制
发表时间:
2012-02
期刊:
影响因子:
--
通讯作者:
Lin, Juhn-Jong
中科院分区:
文献类型:
--
作者:
Lin, Bo-Tsung;Zhang, Yu-Jie;Li, Zhi-Qing;Lin, Juhn-Jong
The electron dephasing processes in two-dimensional homogeneous and inhomogeneous indium tin oxide thin films have been investigated in a wide temperature range 0.3--90 K. We found that the small-energy-transfer electron-electron ($e$-$e$) scattering process dominated the dephasing from a few K to several tens K. At higher temperatures, a crossover to the large-energy-transfer $e$-$e$ scattering process was observed. Below about 1--2 K, the dephasing time $\tau_\varphi$ revealed a very weak temperature dependence, which intriguingly scaled approximately with the inverse of the electron diffusion constant $D$, i.e., $\tau_\varphi (T \approx 0.3 \, {\rm K}) \propto 1/D$. Theoretical implications of our results are discussed. The reason why the electron-phonon relaxation rate is negligibly weak in this low-carrier-concentration material is presented.
DOI:
10.1142/11041
发表时间:
2018-06
期刊:
--
影响因子:
--
作者:
A. Aharonî;O. Entin-Wohlman
通讯作者:
A. Aharonî;O. Entin-Wohlman
DOI:
10.1088/0031-9112/18/7/018
发表时间:
1967-07
期刊:
Physics Bulletin
影响因子:
--
作者:
A R Plummer
通讯作者:
A R Plummer