Growth and physical properties of epitaxial GdN and SmN

ORAL

Abstract

The epitaxial growth and passivation of GdN and SmN by pulsed laser deposition on [100] YSZ substrates has been refined. We report on the growth kinetics, including the relaxation of the films, and the incorporation of oxygen at the substrate-film interface. Magnetic susceptibility measurements confirm a Tc of 70K and small coercive field for GdN. Resistivity measurements show an anomalous peak at Tc, while magnetic transport measurements indicate the films are electron doped to degeneracy, and show a strong anomalous Hall contribution below Tc.

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Authors

  • Ben Ruck

    Victoria University, Wellington

  • Bart Ludbrook

    Victoria University, Wellington

  • Joe Trodahl

    Victoria University, Wellington

  • Andrew Preston

    Victoria University, Wellington

  • Claire Meyer

    Victoria University, Wellington

  • Ian Farrell

    University of Canterbury, Christchurch

  • Steve Durbin

    University of Canterbury, Christchurch

  • Roger Reeves

    University of Canterbury, Christchurch

  • Matthias Kubel

    Victoria University, Wellington

  • Laurent Ranno

    Institute Neel, Grenoble