In Situ Control of Separate Electronic Phases on SrTiO3 Surfaces by Oxygen Dosing.

Dudy, Lenart; Sing, Michael; Scheiderer, Philipp; Denlinger, Jonathan D; Schütz, Philipp; Gabel, Judith; Buchwald, Mathias; Schlueter, Christoph et al. · Adv Mater · 2016

basic_science · Level V

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Record sourced from PubMed, PMID 27332795.
Also identified by DOI 10.1002/adma.201600046.
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Abstract

Insulating SrTiO3 (STO) can host 2D electron systems (2DESs) on its surfaces, caused by oxygen defects. This study shows that the STO surface exhibits phase separation once the 2DES is formed and relates this inhomogeneity to recently reported magnetic order at STO surfaces and interfaces. The results open pathways to exploit oxygen defects for engineering the electronic and magnetic properties of oxides.

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