Orbital Reconstruction and the Two-Dimensional Electron Gas at the LaAlO3/SrTiO3 Interface

@article{ ISI:000265479300055,
Author = {Salluzzo, M. and Cezar, J. C. and Brookes, N. B. and Bisogni, V. and De
   Luca, G. M. and Richter, C. and Thiel, S. and Mannhart, J. and Huijben,
   M. and Brinkman, A. and Rijnders, G. and Ghiringhelli, G.},
Title = {{Orbital Reconstruction and the Two-Dimensional Electron Gas at the
   LaAlO3/SrTiO3 Interface}},
Journal = {{PHYSICAL REVIEW LETTERS}},
Year = {{2009}},
Volume = {{102}},
Number = {{16}},
Month = {{APR 24}},
Abstract = {{In 2004, Ohtomo and Hwang discovered that an electron gas is created at
   the interface between insulating LaAlO3 and SrTiO3 compounds. Here we
   show that the generation of a conducting electron gas is related to an
   orbital reconstruction occurring at the LaAlO3/SrTiO3 interface. Our
   results are based on extensive investigations of the electronic
   properties and of the orbital structure of the interface using x-ray
   absorption spectroscopy. In particular, we find that the degeneracy of
   the Ti 3d states is fully removed and that the Ti 3d(xy) levels become
   the first available states for conducting electrons.}},
Publisher = {{AMER PHYSICAL SOC}},
Address = {{ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Salluzzo, M (Corresponding Author), CNR, INFM, COHERNTIA, Complesso MonteSantangelo Via Cinthia, I-80126 Naples, Italy.
   Salluzzo, M.; De Luca, G. M., CNR, INFM, COHERNTIA, I-80126 Naples, Italy.
   Cezar, J. C.; Brookes, N. B.; Bisogni, V., European Synchrotron Radiat Facil, F-38043 Grenoble, France.
   Richter, C.; Thiel, S.; Mannhart, J., Univ Augsburg, Ctr Elect Correlat & Magnetism, D-86135 Augsburg, Germany.
   Huijben, M.; Brinkman, A.; Rijnders, G., Univ Twente, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands.
   Huijben, M.; Brinkman, A.; Rijnders, G., Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands.
   Ghiringhelli, G., CNR, INFM, COHERNTIA, I-20133 Milan, Italy.
   Ghiringhelli, G., Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy.}},
DOI = {{10.1103/PhysRevLett.102.166804}},
Article-Number = {{166804}},
ISSN = {{0031-9007}},
Keywords-Plus = {{X-RAY-ABSORPTION; OXIDE INTERFACES; HETEROSTRUCTURES; INSULATORS}},
Research-Areas = {{Physics}},
Web-of-Science-Categories  = {{Physics, Multidisciplinary}},
Author-Email = {{salluzzo@na.infn.it}},
ResearcherID-Numbers = {{Huijben, Mark/J-7630-2017
   Cezar, Julio Criginski/D-5039-2012
   Brookes, Nicholas B/C-6718-2019
   salluzzo, marco/C-5919-2009
   Richter, Christoph/A-6172-2013
   Criginski Cezar, Julio/B-2731-2008
   Ghiringhelli, Giacomo/D-1159-2014
   }},
ORCID-Numbers = {{Huijben, Mark/0000-0001-8175-6958
   Cezar, Julio Criginski/0000-0002-7904-6874
   Brookes, Nicholas B/0000-0002-1342-9530
   salluzzo, marco/0000-0001-8372-6963
   Richter, Christoph/0000-0002-6591-1118
   Ghiringhelli, Giacomo/0000-0003-0867-7748
   Mannhart, Jochen/0000-0001-6331-2640}},
Funding-Acknowledgement = {{EUEuropean Union (EU) {[}033191]; German Science FoundationGerman
   Research Foundation (DFG) {[}SFB 484]}},
Funding-Text = {{The authors acknowledge support from the EU under the project Nanoxide,
   Contract No. 033191. J. M., S. T., and C. R. gratefully acknowledge
   support by the German Science Foundation (SFB 484). The authors are
   grateful to J.-M. Triscone, R. Claessen, H. Hilgenkamp, D. H. A. Blank,
   R. Vaglio, and A. Barone for useful discussions.}},
Number-of-Cited-References = {{30}},
Times-Cited = {{237}},
Usage-Count-Last-180-days = {{4}},
Usage-Count-Since-2013 = {{127}},
Journal-ISO = {{Phys. Rev. Lett.}},
Doc-Delivery-Number = {{437IC}},
Unique-ID = {{ISI:000265479300055}},
DA = {{2020-12-22}},
}