Spectroscopic evidence of in-gap states at the SrTiO3/LaAlO3 ultrathin interfaces

被引：44

作者：

Drera, G. ^{[1
]}

Banfi, F. ^{[1
]}

Canova, F. Federici ^{[1
]}

Borghetti, P. ^{[1
]}

Sangaletti, L. ^{[1
]}

Bondino, F. ^{[2
]}

Magnano, E. ^{[2
]}

Huijben, J. ^{[3
,4
]}

Huijben, M. ^{[3
,4
]}

Rijnders, G. ^{[3
,4
]}

Blank, D. H. A. ^{[3
,4
]}

Hilgenkamp, H. ^{[3
,4
]}

Brinkman, A. ^{[3
,4
]}

机构：

[1] Univ Cattolica, Dipartimento Matemat & Fis, I-25121 Brescia, Italy

[2] IOM CNR, Lab TASC, I-34149 Basovizza, Italy

[3] Univ Twente, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands

[4] Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 05期

关键词：

HETEROSTRUCTURES;

D O I：

10.1063/1.3549177

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Experimental evidence of differences in the electronic properties of an insulating and a conducting SrTiO3/LaAlO3 interface is provided by soft x-ray spectroscopies. While core level photoemission measurements show that only at the conducting interface Ti ions with 3+ ionization state are present, by using resonant photoemission and x-ray absorption spectroscopies, it is shown that in both samples in-gap states with a Ti 3d character are present, but their density is higher at the conducting interface. (C) 2011 American Institute of Physics. [doi:10.1063/1.3549177]

引用

页数：3

共 50 条

[31] Electrostriction at the LaAlO3/SrTiO3 Interface
Cancellieri, C.
Fontaine, D.
Gariglio, S.
Reyren, N.
Caviglia, A. D.
Fete, A.
Leake, S. J.
Pauli, S. A.
Willmott, P. R.
Stengel, M.
Ghosez, Ph.
Triscone, J. -M.
PHYSICAL REVIEW LETTERS, 2011, 107 (05)
[32] Possible flexoelectric origin of the Lifshitz transition in LaAlO3/SrTiO3 interfaces
Raslan, Amany
Atkinson, W. A.
PHYSICAL REVIEW B, 2018, 98 (19)
[33] Interface Fermi States of LaAlO3/SrTiO3 and Related Heterostructures
Cancellieri, C.
Reinle-Schmitt, M. L.
Kobayashi, M.
Strocov, V. N.
Schmitt, T.
Willmott, P. R.
Gariglio, S.
Triscone, J. -M.
PHYSICAL REVIEW LETTERS, 2013, 110 (13)
[34] Parallel Conductive-AFM Lithography on LaAlO3/SrTiO3 Interfaces
Li, Shuo
Huang, Mengchen
Bi, Feng
Rubin-Falcone, Harry
Ryu, Sangwoo
Eom, Chang-Beom
Irvin, Patrick
Levy, Jeremy
IEEE TRANSACTIONS ON NANOTECHNOLOGY, 2013, 12 (04) : 518 - 520
[35] Two-dimensional superconductivity at (110) LaAlO3/SrTiO3 interfaces
Han, Yin-Long
Shen, Sheng-Chun
You, Jie
Li, Hai-Ou
Luo, Zhong-Zhong
Li, Cheng-Jian
Qu, Guo-Liang
Xiong, Chang-Min
Dou, Rui-Fen
He, Lin
Naugle, Don
Guo, Guo-Ping
Nie, Jia-Cai
APPLIED PHYSICS LETTERS, 2014, 105 (19)
[36] Work function engineering via LaAlO3/SrTiO3 polar interfaces
Susaki, Tomofumi
Makishima, Asahi
Hosono, Hideo
PHYSICAL REVIEW B, 2011, 84 (11)
[37] Electrically controlled superconducting states at the heterointerface SrTiO3/LaAlO3
Yada, Keiji
Onari, Seiichiro
Tanaka, Yukio
Inoue, Jun-ichiro
PHYSICAL REVIEW B, 2009, 80 (14):
[38] Writing Nanowires with Large Conductivity Ratios in LaAlO3/SrTiO3 Interfaces
Stephanos, Cyril
Breitschaft, Martin
Jany, Rainer
Kiessig, Birgit
Paetel, Stefan
Richter, Christoph
Mannhart, Jochen
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2012, 81 (06)
[39] LaAlO3/SrTiO3 interfaces doped with rare-earth ions
Sanders, T. D.
Gray, M. T.
Wong, F. J.
Suzuki, Y.
PHYSICAL REVIEW B, 2015, 91 (20)
[40] Polarity-induced oxygen vacancies at LaAlO3/SrTiO3 interfaces
Zhong, Zhicheng
Xu, P. X.
Kelly, Paul J.
PHYSICAL REVIEW B, 2010, 82 (16):

← 1 2 3 4 5 →