Doping Dependent Coercive Field in the Reduced Dimensional System La<sub>1-x</sub>Sr<sub>x</sub>MnO<sub>3</sub> (0 ≤ x ≤ 0.5)

POSTER

Abstract

We have investigated the electronic and magnetic ground state of a series of La1−xSrxMnO3 thin films as a function of doping, x, for 0≤x≤0.5. The films were grown by molecular-beam epitaxy, epitaxially strained to (001) oriented strontium titanate substrates. We find that the ground state of these crystalline thin films is, in general, consistent with that observed in both bulk and thin film samples synthesized under a multitude of techniques.  Our systematic study also reveals subtle features in the temperature dependent electronic transport and magnetization measurements that may correspond to Jahn-Teller type distortions in the lattice as a function of doping and temperature.  The doping dependent coercive filed in this series was investigated in this context.

*The authors acknowledge support from the UNF Office of Undergraduate Research. T.M.P. acknowledges support from the UNF Terry Presidential Professorship and the National Science Foundation (NSF) Grant Nos. DMR-16-26332 and DMR-14-29428. M.P.W. acknowledges support from the UNF Scholarship Grant.

Presenters

  • Thomas M Pekarek

    • University of North Florida

Authors

  • Thomas M Pekarek

    • University of North Florida

  • Charles Bryant

    • University of North Forida

  • Rodolfo Marquez Tavera

    • University of North Forida

  • Dakota T Brown

    • University of North Florida

  • James A Payne

    • University of North Florida

  • Maitri P Warusawithana

    • University of North Florida