Proposal of a One-Dimensional Electron Gas in the Steps at the LaAlO_{3}-SrTiO_{3} Interface

Bristowe, N. C. and Fix, T. and Blamire, M. G. and Littlewood, P. B. and Artacho, Emilio (2012) Proposal of a One-Dimensional Electron Gas in the Steps at the LaAlO_{3}-SrTiO_{3} Interface. Physical Review Letters, 108 (16). p. 166802. DOI 10.1103/PhysRevLett.108.166802

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Abstract

The two-dimensional electron gas at the interface between LaAlO3 and SrTiO3 has become one of the most fascinating and highly debated oxide systems of recent times. Here we propose that a one-dimensional electron gas can be engineered at the step edges of the LaAlO3/SrTiO3 interface. These predictions are supported by first-principles calculations and electrostatic modeling which elucidate the origin of the one-dimensional electron gas as an electronic reconstruction to compensate a net surface charge in the step edge. The results suggest a novel route to increasing the functional density in these electronic interfaces.

Item Type: Article
Uncontrolled Keywords: 2012AREP; IA63;
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Physical Review Letters
Volume: 108
Page Range: p. 166802
Identification Number: 10.1103/PhysRevLett.108.166802
Depositing User: Sarah Humbert
Date Deposited: 25 May 2012 10:25
Last Modified: 23 Jul 2013 10:04
URI: http://eprints.esc.cam.ac.uk/id/eprint/2525

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