Bandgap Control of the Oxygen-Vacancy-Induced Two-Dimensional Electron Gas in SrTiO3
Journal article published in 2014 by
Z. Q. Liu,
W. Lu,
S. W. Zeng,
J. W. Deng,
Z. Huang 
,
C. J. Li,
M. Motapothula,
W. M. Lü,
L. Sun,
K. Han,
J. Q. Zhong ,
P. Yang,
N. N. Bao,
W. Chen,
J. S. Chen
and other authors.
,
C. J. Li,
M. Motapothula,
W. M. Lü,
L. Sun,
K. Han,
J. Q. Zhong ,
P. Yang,
N. N. Bao,
W. Chen,
J. S. Chen
and other authors.
This paper is available in a repository.
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Abstract
Tremendous bandgap enhancement (up to 20% greater than the bulk value) is found in thin films of the workhorse material for oxide electronics-SrTiO3, fabricated by pulsed laser deposition below 800 °C. The origin is comprehensively investigated. More importantly, it is utilized to tailor the electronic and magnetic phases of the 2DEG in SrTiO3-based interface systems.