Investigating the stability of incommensurate spin textures in GaV<sub>4</sub>S<sub>8</sub>

ORAL

Abstract

The polar noncentrosymmetric GaV4S8 hosts a Néel skyrmion lattice (SkL) below TC ~ 13 K. The Néel SkL extends over a broad range of temperature and magnetic field relative to the SkL in the chiral B20 helimagnets. It has been proposed that the modulated phases evolve into a ferromagnetic ground state at temperatures below ~ 5 K. By exploiting the magnetocaloric effect, we analyze the temperature and field evolution of the magnetic entropy change to gain insight into the stabilization mechanism of the magnetic phases close to TC, which are thought to be governed by thermal fluctuations. We also investigate the behavior of the magnetic entropy change at low temperatures approaching the magnetic ground state.

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Presenters

  • Eleanor Clements

    • University of South Florida

Authors

  • Eleanor Clements

    • University of South Florida

  • Ganesh Pokharel

    • Department of Physics & Astronomy, University of Tennessee, Knoxville, TN 37996, USA
    • Department of Materials Science and Engineering, University of Tennessee Knoxville
    • Materials Science and Engineering, University of Tennessee
    • Department of Physics & Astronomy, The University of Tennessee

  • David George Mandrus

    • Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
    • University of Tennessee-Knoxville
    • Oak Ridge National Lab
    • Department of Materials Science and Engineering, University of Tennessee
    • University of Tennessee (Knoxville, USA)
    • Department of Materials Science and Engineering, University of Tennessee Knoxville
    • Department of Material Science & Engineering, University of Tennessee
    • Material Science and Engineering, University of Tennessee
    • Materials Science and Technology, Materials Science and Technology
    • University of Tennessee, Knoxville
    • Department of Materials Science and Engineering, The University of Tennessee
    • Materials Science and Engineering, The University of Tennessee
    • Oak Ridge National Laboratory
    • Department of Material Science and Engineering, University of Tennessee

  • Hariharan Srikanth

    • University of South Florida
    • Physics, University of South Florida

  • Manh-Huong Phan

    • Department of Physics, University of South Florida
    • University of South Florida
    • Physics, University of South Florida