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Using Angle Resolved Photoemission Spectroscopy ARPES to unveil the Band Structure of the air stable layered ferromagnet Cr<sub>x</sub>Pt<sub>x-1</sub>Te2

ORAL

Abstract

In recent years, the emergence of a long-range magnetic order in 2-D materials such as CrI3 and Cr2Ge2Te6 have created a lot of excitement. These materials are however air-sensitive, which limits possible electronic device applications. Here, we use Angle Resolved Photo Emission Spectroscopy (ARPES) to characterize an air stable layered ferromagnet CrxPtx-1Te2 synthetized by the Goldberger group at Ohio State University. [1] Previous works have identified PtTe2 as a type-II Dirac semimetal. Here, the addition of Cr forms a random alloy that brings ferromagnetism while preserving the air-stability of the transition metal dichalcogenide. We show high resolution ARPES data that make use of different light polarizations to characterize the different layered ferromagnet alloys.

[1] Yan, M., Huang, H., Zhang, K. et al. Lorentz-violating type-II Dirac fermions in transition metal dichalcogenide PtTe2 . Nat Commun 8, 257 (2017)

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Presenters

  • Derek C Bergner

    California State University, Long Beach

Authors

  • Derek C Bergner

    California State University, Long Beach

  • Warren L Huey

    Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Avenue, Columbus, Ohio 43210, United States, Department of Chemistry and Biochemistry, The Ohio State University, Ohio State University

  • Luca Moreschini

    Lawrence Berkeley National Laboratory

  • Jonathan D Denlinger

    Lawrence Berkeley National Laboratory, Lawrence Berkeley National Lab

  • Wolfgang E Windl

    Ohio State Univ - Columbus

  • Alessandra Lanzara

    University of California, Berkeley, Lawrence Berkeley National Laboratory

  • Joshua E Goldberger

    The Ohio State University, Ohio State University

  • Claudia Ojeda-Aristizabal

    California State University, Long Beach