"Enhancing Electron Mobility at the LaAlO3/SrTiO3 Interface by Surface Control"

Yanwu Xie: Christopher Bell, Yasuyuki Hikita, Satoshi Harashima, Harold Y. Hwang; Advanced Materials, 07/15/13.

Additional Authors: Christopher Bell, Yasuyuki Hikita, Satoshi Harashima, Harold Y. Hwang

Abstract:

Mobility of electrons confined at the LaAlO3/SrTiO3 interface is significantly enhanced by surface control using surface charges and adsorbates, reaching a low temperature value more than 20 000 cm2 V−1s−1. A uniform trend that mobility increases with decreasing sheet carrier density is observed.