Magnetotransport of NdNiO$_{3}$ thin films

ORAL

Abstract

The Hall coefficient of epitaxial NdNiO$_{3}$ films is evaluated in a wide range of temperatures, from the metallic into the insulating phase. It is shown that for temperatures for which metallic and insulating regions co-exist, the Hall coefficient must be corrected for the time-dependence in the longitudinal resistance, which is due to a slow evolution of metallic and insulating domains. The positive Hall and negative Seebeck coefficients, respectively, in the metallic phase are characteristic for two bands participating in the transport. We report on magnetoresistance measurements at low temperature and interpret them in terms of the specific magnetic ordering in these films, as a function of epitaxial film strain.

*This work was supported in part by FAME, one of six centers of STARnet, a Semiconductor Research Corporation program sponsored by MARCO and DARPA.

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Authors

  • Adam Hauser

    • Materials Department, University of California, Santa Barbara

  • Evgeny Mikheev

    • UC Santa Barbara
    • Materials Department, University of California, Santa Barbara

  • Nelson Moreno

    • Materials Department, University of California, Santa Barbara

  • Tyler Cain

    • Materials Dept., Univ. of California, Santa Barbara
    • Materials Department, University of California, Santa Barbara

  • Jinwoo Hwang

    • Materials Dept., University of California, SB
    • Materials Department, University of California, Santa Barbara

  • Jack Zhang

    • University of California Santa Barbara
    • Materials Department, University of California, Santa Barbara

  • Susanne Stemmer

    • UC Santa Barbara
    • Materials Dept., Univ. of California, Santa Barbara
    • Materials Department, University of California, Santa Barbara