PMID- 29317754
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20181005
LR  - 20181113
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 8
IP  - 1
DP  - 2018 Jan 9
TI  - Influence of In-Gap States on the Formation of Two-Dimensional Election Gas at 
      ABO(3)/SrTiO(3) Interfaces.
PG  - 195
LID - 10.1038/s41598-017-18583-5 [doi]
LID - 195
AB  - We explored in-gap states (IGSs) in perovskite oxide heterojunction films. We 
      report that IGSs in these films play a crucial role in determining the formation 
      and properties of interfacial two-dimensional electron gas (2DEG). We report that 
      electron trapping by IGSs opposes charge transfer from the film to the interface. 
      The IGS in films yielded insulating interfaces with polar discontinuity and 
      explained low interface carrier density of conducting interfaces. An ion trapping 
      model was proposed to explain the physics of the IGSs and some experimental 
      findings, such as the unexpected formation of 2DEG at the initially insulating 
      LaCrO(3)/SrTiO(3) interface and the influence of substitution layers on 2DEG.
FAU - Li, Cheng-Jian
AU  - Li CJ
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China.
FAU - Xue, Hong-Xia
AU  - Xue HX
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China.
FAU - Qu, Guo-Liang
AU  - Qu GL
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China.
FAU - Shen, Sheng-Chun
AU  - Shen SC
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China.
FAU - Hong, Yan-Peng
AU  - Hong YP
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China.
FAU - Wang, Xin-Xin
AU  - Wang XX
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China.
FAU - Liu, Ming-Rui
AU  - Liu MR
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China.
FAU - Jiang, Wei-Min
AU  - Jiang WM
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China.
FAU - Badica, Petre
AU  - Badica P
AD  - National Institute of Materials Physics, Atomistilor 405A, Magurele, Ilfov, 
      077125, Romania.
FAU - He, Lin
AU  - He L
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China.
FAU - Dou, Rui-Fen
AU  - Dou RF
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China.
FAU - Xiong, Chang-Min
AU  - Xiong CM
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China.
FAU - Lu, Wei-Ming
AU  - Lu WM
AD  - Condensed Matter Science and Technology Institute, Harbin Institute of 
      Technology, Harbin, 150001, China.
FAU - Nie, Jia-Cai
AU  - Nie JC
AD  - Department of Physics, Beijing Normal University, Beijing, 100875, China. 
      jcnie@bnu.edu.cn.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20180109
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
PMC - PMC5760580
COIS- The authors declare that they have no competing interests.
EDAT- 2018/01/11 06:00
MHDA- 2018/01/11 06:01
PMCR- 2018/01/09
CRDT- 2018/01/11 06:00
PHST- 2017/09/05 00:00 [received]
PHST- 2017/12/13 00:00 [accepted]
PHST- 2018/01/11 06:00 [entrez]
PHST- 2018/01/11 06:00 [pubmed]
PHST- 2018/01/11 06:01 [medline]
PHST- 2018/01/09 00:00 [pmc-release]
AID - 10.1038/s41598-017-18583-5 [pii]
AID - 18583 [pii]
AID - 10.1038/s41598-017-18583-5 [doi]
PST - epublish
SO  - Sci Rep. 2018 Jan 9;8(1):195. doi: 10.1038/s41598-017-18583-5.