Observation of two step magnetization reversal in Fe$_0.25$TaS$_2$

ORAL

Abstract

Understanding magnetic coercivity mechanisms in strong ferromagnets is crucial for new technologies. We studied domain wall pinning in a highly anisotropic ferromagnet of single crystalline Fe$_0.25$TaS$_2$ by utilizing variable temperature magnetic force microscopy (VT-MFM). Magnetic domain structure and the magnetization reversal were investigated in magnetic fields up to 8 tesla at several temperature. Our results revealed the existence of two step magnetization reversal in Fe$_0.25$TaS$_2$. The real space images of magnetic domains, showing this intriguing phenomenon, will be presented.

–

Authors

  • S. Park

    • Department of Physics, Chung-Ang University-Seoul, South Korea

  • S.B. Kim

    • Laboratory of Pohang Emergent Materials and Department of Physics, Pohang University of Science and Technology - Pohang, South Korea

  • Y.J. Choi

  • Y. Horibe

  • S-W. Cheong

  • Weida Wu

    • Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, 08854, USA