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)

*ARPES measurements were supported by the US Department of Energy, Office of Science,Office of Basic Energy Sciences under award number DE-SC0018154 CrxPt1-xTe2 synthesis was supported by the Center for Emergent Materials, an NSF MRSEC, under award number DMR-2011876.Derek Bergner was supported by the Cal. State. Long Beach and Ohio State University Partnership for Education and Research in Hard and Soft Materials, a National Science Foundation PREM, under Grant No. 2122199.

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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