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

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 v...

Full description

Saved in:
Bibliographic Details
Published inAdvanced materials (Weinheim) Vol. 27; no. 26; pp. 3894 - 3899
Main Authors 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
Format Journal Article
LanguageEnglish
Published Germany Blackwell Publishing Ltd 08.07.2015
Subjects
2D electron gas
angle-resolved photoemission spectroscopy
oxygen vacancies
strontium titanate
strontium titanate
2D electron gas
angle-resolved photoemission spectroscopy
oxygen vacancies
Online AccessGet full text

Cover

More Information
Summary: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.
Bibliography:ark:/67375/WNG-7Q9DGW9F-5
ArticleID:ADMA201501556
istex:1C174238241664565B991F9CA1A3DB764A2FF8EE
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201501556