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5 papers
Dynamical response and confinement of the electrons at the LaAlO3/SrTiO3 interface
A. Dubroka, M. Roessle, K. W. Kim +10
With infrared ellipsometry and transport measurements we investigated the electrons at the interface between LaAlO3 and SrTiO3. We obtained a sheet carrier density of Ns~5-9x 10E13…
Polar catastrophe and electronic reconstructions at the LaAlO3/SrTiO3 interface: evidence from optical second harmonic generation
A. Savoia, D. Paparo, P. Perna +8
The so-called "polar catastrophe", a sudden electronic reconstruction taking place to compensate for the interfacial ionic polar discontinuity, is currently considered as a likely…
Orbital reconstruction and two-dimensional electron gas at the LaAlO3/SrTiO3 interface
M. Salluzzo, G. Ghiringhelli, J. C. Cezar +9
Conventional two-dimensional electron gases are realized by engineering the interfaces between semiconducting compounds. In 2004, Ohtomo and Hwang discovered that an electron gas c…
Profiling the interface electron gas of LaAlO3/SrTiO3 heterostructures by hard X-ray photoelectron spectroscopy
M. Sing, G. Berner, K. Goss +11
The conducting interface of LaAlO/SrTiO heterostructures has been studied by hard X-ray photoelectron spectroscopy. From the Ti~2 signal and its angle-dependence we deri…
Electric Field Control of the LaAlO/SrTiO Interface Ground State
A. D. Caviglia, S. Gariglio, N. Reyren +7
Interfaces between complex oxides are emerging as one of the most interesting playgrounds in condensed matter physics. In this special setting, in which translational symmetry is a…