Phase coherent transport in SrTiO3/LaAlO3 interfaces

Article

关键词: UNIVERSAL CONDUCTANCE FLUCTUATIONS;    SPIN-ORBIT;    ELECTRON-GAS;    MAGNETORESISTANCE;    LOCALIZATION;    SCATTERING;    SYSTEMS;    METALS;    WIRES;   

DOI  :  10.1103/PhysRevB.82.235119

来源: SCIE

【 摘 要 】

The two-dimensional electron gas formed between 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, L-phi, 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.

【 授权许可】

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