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Spin-texture in magnetic intercalated TMD - Co<sub>X</sub>TaS<sub>2</sub>

ORAL

Abstract

Magnetic Transition metal dichalcogenides have attracted a lot of attention over the past ten years because of the potential of studying two-dimensional magnetism and for their adaptability in data storage applications. Among these, the appearance of a triple Q antiferromagnetic order in Co doped TaS2, where Co atoms intercalate between 1H-TaS2 layers has revealed CoxTaS2 as a new exciting candidate for spin-valley locking driven by broken inversion symmetry. As of today, very little is known how magnetic Co layer affects the spin dependent electronic properties of the material and what is the role of intercalated Co in defining its momentum.

Here, we use spin resolved photoemission spectroscopy to directly study the spin dependent electronic structure of Co1/3TaS2. A non-zero spin polarization with peculiar spin momentum locking is reported. The spin dependence is compared with the spin texture observed in the parent compound 2H-TaS2 and the role of Co to induce such spin polarization is discussed.

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Presenters

  • Hailan Luo

    Lawrence Berkeley National Laboratory

Authors

  • Hailan Luo

    Lawrence Berkeley National Laboratory

  • Alessandra Lanzara

    University of California, Berkeley, Department of Physics, University of California at Berkeley, Berkeley, CA, USA, Department of Physics, University of California, Berkeley

  • Josue Rodriguez

    University of California Berkeley

  • James G Analytis

    University of California, Berkeley

  • Alexei V Fedorov

    Lawrence Berkeley National Laboratory

  • Maximillian Huber

    Lawrence Berkeley National Laboratory, Lawrence Berkeley National Lab

  • Cheng Hu

    Lawrence Berkeley National Lab

  • Luca Moreschini

    University of California, Berkeley, Department of Physics, University of California at Berkeley, Berkeley, CA, USA, Department of Physics, University of California, Berkeley

  • Haoyue Jiang

    Lawrence Berkeley National Laboratory, Department of Physics, University of California at Berkeley, Berkeley, CA, USA

  • Christopher Jozwiak

    ALS, LBNL, Berkeley, Lawrence Berkeley National Lab, Lawrence Berkeley National Laboratory, Advanced Light Source, E.O. Lawerence Berkeley National Laboratory, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA

  • Aaron Bostwick

    ALS, LBNL, Berkeley, Lawrence Berkeley National Lab, Lawrence Berkeley National Laboratory, Advanced Light Source, LBNL, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA

  • Eli Rotenberg

    ALS, LBNL, Berkeley, Lawrence Berkeley National Laboratory, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA