Proposal of a One-Dimensional Electron Gas in the Steps at the LaAlO3-SrTiO3 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 LaAlO3-SrTiO3 Interface. Physical Review Letters, 108 (16). p. 166802. ISSN 0031-9007. (doi:https://doi.org/10.1103/PhysRevLett.108.166802) (Full text available)

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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
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science > QC Physics > QC176 Solid state physics
Q Science > QD Chemistry > QD478 Solid State Chemistry
Q Science > QD Chemistry > QD473 Physical properties in relation to structure
Divisions: Faculties > Sciences > School of Physical Sciences
Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Nicholas Bristowe
Date Deposited: 21 Feb 2017 15:12 UTC
Last Modified: 22 Feb 2017 15:29 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/60260 (The current URI for this page, for reference purposes)
Bristowe, N. C.: https://orcid.org/0000-0003-1286-8440
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