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Structure–Property Relation of SrTiO 3 /LaAlO 3 Interfaces
Author(s) -
Huijben Mark,
Brinkman Alexander,
Koster Gertjan,
Rijnders Guus,
Hilgenkamp Hans,
Blank Dave H. A.
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200801448
Subject(s) - materials science , characterization (materials science) , condensed matter physics , superconductivity , interface (matter) , metallicity , electronic structure , phase diagram , thin film , chemical physics , scattering , phase (matter) , nanotechnology , optics , physics , composite material , stars , astronomy , capillary number , quantum mechanics , capillary action
A large variety of transport properties have been observed at the interface between the insulating oxides SrTiO 3 and LaAlO 3 such as insulation, 2D interface metallicity, 3D bulk metallicity, magnetic scattering, and superconductivity. The relation between the structure and the properties of the SrTiO 3 /LaAlO 3 interface can be explained in a meaningful way by taking into account the relative contribution of three structural aspects: oxygen vacancies, structural deformations (including cation disorder), and electronic interface reconstruction. The emerging phase diagram is much richer than for related bulk oxides due to the occurrence of interface electronic reconstruction. The observation of this interface phenomenon is a display of recent advances in thin film deposition and characterization techniques, and provides an extension to the range of exceptional electronic properties of complex oxides.