Details

Autor(en) / Beteiligte

• Walker, Siobhan McKeown
• Bruno, Flavio Yair
• Wang, Zhiming
• de la Torre, Alberto
• Riccó, Sara
• Tamai, Anna
• Kim, Timur K.
• Hoesch, Moritz
• Shi, Ming
• Bahramy, Mohammad Saeed
• King, Phil D. C.
• Baumberger, Felix

Titel

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

Ist Teil von

• Advanced materials (Weinheim), 2015-07, Vol.27 (26), p.3894-3899

Ort / Verlag

Germany: Blackwell Publishing Ltd

Erscheinungsjahr

2015

Quelle

Access via Wiley Online Library

Beschreibungen/Notizen

• 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.