A Systematic Study of V<sub>1-x</sub>Mo<sub>x</sub>O<sub>2</sub> Correlation Length as a Function of Mo Composition and Temperature

ORAL

Abstract


VO2 undergoes a metal-to-insulator transition at 340 K, during which a structural transition from rutile (R) to monoclinic (M1) also occurs. The origins of these transitions are not well understood. Doped VO2 has been studied in efforts to tune the transition temperature and understand the origin of these transitions. However, there are discrepancies in the phase diagrams of these systems. One such example is V1-x MoxO2. Previous single-crystal diffuse scattering studies found the existence of a 2D-M2 phase between 0.19 ≤ x ≤ 0.43. Here, a systematic study of correlation length as a function of both Mo concentration and temperature is presented to better understand the origins of these structural phase transitions.

*The work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences under award DE-SC0018174.

–

Presenters

  • Tyra C Douglas

    • Chemistry & Biochemistry, University of Alabama

Authors

  • Tyra C Douglas

    • Chemistry & Biochemistry, University of Alabama

  • Matthew A Davenport

    • University of Alabama
    • Chemistry & Biochemistry, University of Alabama

  • Logan M. Whitt

    • University of Alabama
    • Chemistry & Biochemistry, University of Alabama

  • Top B Rawot Chhetri

    • Chemistry & Biochemistry, University of Alabama

  • Matthew Krogstad

    • Materials Science Division, Argonne National Laboratory
    • Argonne National Laboratory
    • Materials Science Division, Argonne National Lab
    • Material Science, Argonne National Laboratory
    • Material Science Division, Argonne National Laboratory

  • Stephan Rosenkranz

    • Materials Science Division, Argonne National Laboratory
    • Argonne National Laboratory
    • Materials Science Division, Argonne National Lab
    • Materials Science, Argonne National Laboratory
    • Material Science, Argonne National Laboratory
    • Material Science Division, Argonne National Laboratory

  • Raymond Osborn

    • Materials Science Division, Argonne National Laboratory
    • Argonne National Laboratory
    • Materials Science Division, Argonne National Lab
    • Materials Science, Argonne National Laboratory
    • Material Science, Argonne National Laboratory
    • Material Science Division, Argonne National Laboratory

  • Jared Allred

    • University of Alabama
    • Chemistry & Biochemistry, University of Alabama