Journal
ADVANCED MATERIALS
Volume 28, Issue 34, Pages 7443-7449Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201600046
Keywords
functional oxides; heterostructures; oxide; oxygen control; phase separation; transition metal oxides
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Funding
- Deutsche Forschungsgemeinschaft [FOR1346]
- Bavaria California Technology Center (BaCaTeC)
- Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
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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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