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  • Title: Superconductivity at the LaAlO(3)/SrTiO(3) interface.
    Author: Gariglio S, Reyren N, Caviglia AD, Triscone JM.
    Journal: J Phys Condens Matter; 2009 Apr 22; 21(16):164213. PubMed ID: 21825393.
    Abstract:
    We report on the structural characterization of LaAlO(3)/SrTiO(3) interfaces and on their transport properties. LaAlO(3) films were prepared using pulsed laser deposition onto TiO(2) terminated (001) SrTiO(3) substrates inducing a metallic conduction at the interface. Resistance and Hall effect measurements reveal a sheet carrier density between 0.4 and 1.2 × 10(14) electrons cm(-2) at room temperature and a mobility of ∼300 cm(2) V(-1) s(-1) at low temperatures. A transition to a superconducting state is observed at a temperature of ∼200 mK. The superconducting characteristics display signatures of 2D superconductivity.
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