Correlated Electron Metals with High Entropy: Thin Film Growth and Properties

ORAL

Abstract

Novel conducting complex oxides with high electron correlation are of keen interest for UV-transparent applications, magnetoelectic devices, and as hosts for fundamental studies of correlated electron systems. SrBO3 cubic perovskites with early transition metals are intriuging to explore due to their tunable electrical conductivity and transparency. Utilizing a high configurational entropy formulation, the high symmetry perovskite phase can be stabilized with five cations on the perovskite B-site. Our results show that Srx(Ti,Nb,Cr,Mo,W)O3 thin films grown by pulsed laser deposition exhibit unique combination of chemical disorder and high crystalline fidelity. This combination produces significant electron correlation, low electrical resistivity, and an optical transparency window that surpasses that of constituent end-members

*The authors gratefully acknowledge support from NSF MRSEC DMR-2011839

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Presenters

  • Saeed S Almishal

    • Pennsylvania State University
    • The Pennsylvania State University

Authors

  • Saeed S Almishal

    • Pennsylvania State University
    • The Pennsylvania State University

  • Pat Kezer

    • University of Michigan

  • Yasuyuki Iwabuchi

    • Pennsylvania State University
    • The Pennsylvania State University

  • Jacob Sivak

    • The Pennsylvania State University

  • Sai Venkata Gayathri Ayyagari

    • The Pennsylvania State University
    • Pennsylvania State University

  • Saugata Sarker

    • The Pennsylvania State University
    • Pennsylvania State University

  • Matthew Furst

    • The Pennsylvania State University

  • Billy Yang

    • The Pennsylvania State University

  • Gerald Bejger

    • Virginia Tech

  • Simon Gelin

    • Carnegie Mellon University

  • Nasim Alem

    • The Pennsylvania State University
    • Pennsylvania State University

  • Ismaila Dabo

    • Carnegie Mellon University
    • Pennsylvania State University
    • The Pennsylvania State University

  • Vincent H Crespi

    • Pennsylvania State University
    • The Pennsylvania State University

  • Christina M Rost

    • Virginia Tech

  • Susan B Sinnott

    • Pennsylvania State University
    • The Pennsylvania State University

  • Venkatraman Gopalan

    • The Pennsylvania State University

  • Roman Engel-Herbert

    • Humboldt University of Berlin

  • John T Heron

    • University of Michigan

  • Jon-Paul Maria

    • Pennsylvania State University
    • Penn State University