Browsing by Author "Mikheev, Evgeny"

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    Nanostructure investigations of nonlinear differential conductance in NdNiO3 thin films
    (American Physical Society, 2014) Hardy, Will J.; Ji, Heng; Mikheev, Evgeny; Stemmer, Susanne; Natelson, Douglas; Rice Quantum Institute
    Transport measurements on thin films of NdNiO3 reveal a crossover to a regime of pronounced nonlinear conduction below the well-known metal-insulator transition temperature. The evolution of the transport properties at temperatures well below this transition appears consistent with a gradual formation of a gap in the holelike Fermi surface of this strongly correlated system. As T is decreased below the nominal transition temperature, transport becomes increasingly non-Ohmic, with a model of Landau-Zener breakdown becoming most suited for describing I(V) characteristics as the temperature approaches 2 K.