Suppression of the two-dimensional electron gas in LaGaO3/SrTiO3 by cation intermixing

Safdar Nazir, Bin Amin, Udo Schwingenschlögl

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Cation intermixing at the n-type polar LaGaO 3 /SrTiO 3 (001) interface is investigated by first principles calculations. Ti"Ga, Sr"La, and SrTi"LaGa intermixing are studied in comparison to each other, with a focus on the interface stability. We demonstrate in which cases intermixing is energetically favorable as compared to a clean interface. A depopulation of the Ti 3d xy orbitals under cation intermixing is found, reflecting a complete suppression of the two-dimensional electron gas present at the clean interface.
Original languageEnglish (US)
JournalScientific Reports
Volume3
Issue number1
DOIs
StatePublished - Dec 3 2013

ASJC Scopus subject areas

  • General

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