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arXiv · 1009.1273

Phase coherent transport in SrTiO3/LaAlO3 interfaces

D. Rakhmilevitch·M. Ben Shalom·M. Eshkol·A. Tsukernik·A. Palevski·Y. Dagan
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Abstract

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.

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D. Rakhmilevitch, M. Ben Shalom, M. Eshkol, A. Tsukernik, A. Palevski, Y. Dagan. 2010-09-07. Phase coherent transport in SrTiO3/LaAlO3 interfaces. https://doi.org/10.1103/physrevb.82.235119

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