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Publisher DOI: 10.1140/epjst/e2017-70059-7
Title: Influence of oxygen vacancies on two-dimensional electron systems at SrTiO3-based interfaces and surfaces
Language: English
Authors: Sing, Michael 
Jeschke, Harald O. 
Lechermann, Frank 
Valentí, Roser 
Claessen, Ralph 
Issue Date: 10-Jul-2017
Publisher: Springer
Source: European Physical Journal: Special Topics 11 (226): 2457-2475 (2017)
Journal or Series Name: European physical journal special topics 
Abstract (english): The insulator SrTiO3 can host high-mobility two-dimensional electron systems on its surfaces and at interfaces with other oxides. While for the bare surface a two-dimensional electron system can only be induced by oxygen vacancies, it is believed that the metallicity of heterostructure interfaces as in LaAlO3/SrTiO3 is caused by other mechanisms related to the polar discontinuity at the interface. Based on calculations using density functional and dynamical mean-field theory as well as on experimental results using photoemission spectroscopy we elucidate the role of oxygen vacancies, thereby highlighting their importance for the electronic and magnetic properties of the systems under study.
DOI: 10.15480/882.2015
ISSN: 1951-6401
Institute: Keramische Hochleistungswerkstoffe M-9 
Type: (wissenschaftlicher) Artikel
Funded by: Deutsche Forschungsgemeinschaft (DFG)
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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