Title: Temperature-dependent magneto-optical measurement of ferromagnetic kagome-lattice semimetal Co<sub>3</sub>Sn<sub>2</sub>S<sub>2</sub>

ORAL

Abstract

Co3Sn2S2 is a Co-based shandite material with a ferromagnetic Curie temperature of around 175 K. The hexagonal lattice of the crystal forms a kagome network of Co atoms within the Co3Sn layer. The spin-up band crosses the Fermi level in the sample's band structure. We can create a ring structure by connecting the crossing points in 3D. This ring opens up more with spin-orbit interaction, resulting in a gap with anti-crossing lines. We studied temperature-dependent spin dynamics in ferromagnetic kagome-lattice semimetal Co3Sn2S2 via ultrafast time-resolved magneto-optic Kerr effect(TR-MOKE) up to 7T.

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Presenters

  • Arup Barua

    • University of South Florida

Authors

  • Arup Barua

    • University of South Florida

  • Hengzhou Liu

    • University of South Florida

  • Samuel Langelund Carrera

    • University of South Florida

  • Deepak Sapkota

    • University of Tennessee, Knoxville

  • Zachary L Romestan

    • West Virginia University

  • Soumya S Bhat

    • West Virginia University

  • Varun Mapara

    • University of South Florida

  • Dario A Arena

    • University of South Florida

  • David G Mandrus

    • University of Tennessee
    • Oak Ridge National Laboratory

  • Aldo H Romero

    • West Virginia University

  • Denis Karaiskaj

    • Univ of South Florida