Magneto-Raman Spectroscopy of Spin Waves in Bulk NiPS<sub>3</sub>

POSTER

Abstract

NiPS3 is a van der Waals XY-type antiferromagnet with a Neel temperature of ~155 K. We performed polarization-resolved magneto-Raman measurements on bulk NiPS3 to probe its spin wave properties. Magnetic field was applied along the a and b crystal axes and perpendicular to the ab plane. We observe two spin wave modes at 9 and 43 cm-1. The behaviors of these two spin wave modes are different when field is applied along different axes. The magnetic field dependence of the spin wave modes are reproduced in our theoretical calculation. Our results reveal the intriguing spin excitation properties in NiPS3.

*R. H. acknowledges support by NSF Grants No. DMR-2104036 and DMR-2300640. L. Z. acknowledges support by the NSF grant no. DMR-2103731, ONR grant no. N00014-21-1-2770 and the Gordon and Betty Moore Foundation Award N031710.

Presenters

  • Gaihua Ye

    • Texas Tech University

Authors

  • Gaihua Ye

    • Texas Tech University

  • Cynthia Chiamaka Nnokwe

    • Texas Tech University

  • Zeliang Sun

    • University of Michigan

  • Nan Huang

    • University of Tennessee

  • David G Mandrus

    • University of Tennessee

  • Xiaohan Wan

    • University of Michigan

  • Kai Sun

    • University of Michigan

  • Rui He

    • Texas Tech University

  • Liuyan Zhao

    • University of Michigan