Investigating Strain Effects on Helimagnetism in Cubic SrFeO₃ Thin Films

ORAL

Abstract

Cubic SrFeO₃ is a perovskite oxide (Pm-3̄m) with metallic conductivity and helimagnetic order. While its bulk magnetic properties are well known, the impact of strain on its magnetic behavior remains unclear. Using neutron and x-ray scattering, we probe how biaxial strain from the substrate modifies helimagnetic order in thin films. To better understand the underlying mechanisms, we are complementing these experiments with density functional theory (DFT) calculations. This work aims to clarify the relationship between lattice strain and complex magnetic order in perovskite oxides.

*We acknowledge funding from the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under contract number DE-AC02-76SF00515. Computational work at Northwestern was supported by the Department of Energy, Office of Science FWP-101256 as part of the Enabling Science for Transformative Energy-Efficient Microelectronics (ESTEEM) Center.

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Presenters

  • Danilo Puggioni

    • Northwestern University

Authors

  • Danilo Puggioni

    • Northwestern University

  • Linding Yuan

    • Northwestern University

  • James M Rondinelli

    • Northwestern University

  • Steven J May

    • Drexel University

  • Jennifer Fowlie

    • Northwestern University

  • Jiarui Li

    • Stanford University

  • Ronny Sutarto

    • Canadian Light Source

  • Teak Boyko

    • Canadian Light Source

  • Fabio Orlandi

    • STFC Rutherford Appleton Laboratory
    • ISIS Facility, Rutherford Appleton Laboratory
    • ISIS Neutron and Muon Source

  • Pascal Manuel

    • STFC Rutherford Appleton Laboratory
    • ISIS Pulsed Neutron Source
    • ISIS Facility, Rutherford Appleton Laboratory
    • ISIS Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Oxfordshire, UK
    • ISIS Neutron and Muon Source

  • Dmitry D Khalyavin

    • STFC Rutherford Appleton Laboratory
    • ISIS Facility, Rutherford Appleton Laboratory

  • Harold Y Hwang

    • Stanford University

  • Lucas Barreto

    • Federal University of ABC-UFABC

  • Robert J Green

    • Univ of Saskatchewan