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. 2013 Sep 14;25(34):4735-8.
doi: 10.1002/adma.201301798. Epub 2013 Jul 15.

Enhancing electron mobility at the LaAlO₃ /SrTiO₃ interface by surface control

Yanwu Xie  1 , Christopher Bell, Yasuyuki Hikita, Satoshi Harashima, Harold Y Hwang
Affiliations

Enhancing electron mobility at the LaAlO₃ /SrTiO₃ interface by surface control

Yanwu Xie et al. Adv Mater. .

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 cm(2) V(-1) s(-1) . A uniform trend that mobility increases with decreasing sheet carrier density is observed.

Keywords: LaAlO3/SrTiO3; adsorbate; interface; surface charge.

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