The two dimensional electron gas formed between the two band insulators SrTiO3 and LaAlO3 exhibits a variety of interesting physical properties which make it an appealing material for use in future spintronics and/or quantum computing devices. For this kind of applications electrons have to retain their phase memory for sufficiently long times or length. Using a mesoscopic size device we were able to extract the phase coherence length, and its temperature variation. We find the dephasing rate to have a power law dependence on temperature. The power depends on the temperature range studied and sheet resistance as expected from dephasing due to strong electron-electron interactions.
@article{arxiv.1009.1273,
title = {Phase coherent transport in SrTiO3/LaAlO3 interfaces},
author = {D. Rakhmilevitch and M. Ben Shalom and M. Eshkol and A. Tsukernik and A. Palevski and Y. Dagan},
journal= {arXiv preprint arXiv:1009.1273},
year = {2015}
}