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Electronic Structures of Chiral Helimagnetic Intercalated Transition Metal Dichalcogenides

ORAL

Abstract

Materials hosting topologically protected spin textures are appealing candidates for spintronic applications. The chiral helimagnets Cr1/3NbS2 and Cr1/3TaS2 are two such materials. Herein, we present a comparative study of their electronic structures using angle-resolved photoemission spectroscopy (ARPES). We find more dispersive bands in the Ta analogue, consistent with density functional theory (DFT) band structure calculations. The implications for the magnetic exchange interactions in these materials and the relative energy scales of their magnetic phase diagrams are discussed. We also propose assignments for experimentally observed bands near the Fermi level to surface vs. bulk states and discuss this model in the context of the chemistry of these materials.

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Publication: Lilia S. Xie, Oscar Gonzalez, Kejun Li, Matteo Michiardi, Marta Zonno, Sergey Gorovikov, Sergey Zhdanovich, Shannon S. Fender, Na Hyun Jo, Sae Hee Ryu, Samra Husremovic, Matthew Erodici, Cameron Mollazadeh, Chris Jozwiak, Aaron Bostwick, Eli Rotenberg, Andrea Damascelli, Yuan Ping, D. Kwabena Bediako. Electronic Structures of Chiral Helimagnetic Intercalated Transition Metal Dichalcogenides. Manuscript in preparation.

Presenters

  • Lilia Xie

    University of California, Berkeley

Authors

  • Lilia Xie

    University of California, Berkeley

  • Oscar Gonzalez

    University of California, Berkeley

  • Kejun LI

    University of California, Santa Cruz

  • Matteo Michiardi

    University of British Columbia

  • Marta Zonno

    University of British Columbia, Canadian Light Source

  • Sergey Gorovikov

    Canadian Light Source, Canadian Lightsource

  • Sergey Zhadanovich

    University of British Columbia

  • Shannon S Fender

    University of California, Berkeley, Los Alamos National Laboratory

  • Nahyun Jo

    University of Michigan

  • Sae Hee Ryu

    Lawrence Berkeley National Laboratory

  • Samra Husremovic

    University of California, Berkeley

  • Matthew Erodici

    University of California, Berkeley

  • Cameron Mollazadeh

    University of California, Berkeley

  • Christopher Jozwiak

    Lawrence Berkeley National Laboratory, LBNL, The Advanced Light Source, lawrence berkeley national lab, Lawrence Berkeley National Lab, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States of America, Advanced Light Source, Lawrence Berkeley National Lab

  • Aaron Bostwick

    Lawrence Berkeley National Laboratory, LBNL, The Advanced Light Source, lawrence berkeley national lab, Lawrence Berkeley National Lab, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States of America, Advanced Light Source, Lawrence Berkeley National Lab

  • Eli Rotenberg

    Lawrence Berkeley National Laboratory, Advanced Light Source, Lawrence Berkeley National Lab

  • Andrea Damascelli

    University of British Columbia, Department of Physics and Astronomy, University of British Columbia

  • Yuan Ping

    UC Santa Cruz, University of California, Santa Cruz

  • Daniel K Bediako

    University of California Berkeley, University of California, Berkeley