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Title

Carrier-Density Control of the SrTiO3 (001) Surface 2D Electron Gas studied by ARPES

Authors
Wang, Zhiming
Kim, Timur K.
Hoesch, Moritz
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Published in Advanced Materials. 2015, vol. 27, no. 26, p. 3894-3899
Abstract The origin of the 2D electron gas (2DEG)stabilized at the bare surface of SrTiO3 (001) is investigated. Using high-resolution angle-resolved photoemission and core-level spectroscopy, it is shown conclusively that this 2DEG arises from light-induced oxygen vacancies. The dominant mechanism driving vacancy formation is identified, allowing unprecedented control over the 2DEG carrier density.
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MCKEOWN WALKER, Siobhan et al. Carrier-Density Control of the SrTiO3 (001) Surface 2D Electron Gas studied by ARPES. In: Advanced Materials, 2015, vol. 27, n° 26, p. 3894-3899. https://archive-ouverte.unige.ch/unige:80005

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Deposited on : 2016-01-25

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