Spin dependent charge transfer in MoSe2/hBN/Ni hybrid structures

  title={Spin dependent charge transfer in MoSe2/hBN/Ni hybrid structures},
  author={Hans Tornatzky and Clotilde Des Robert and P. Renucci and B. Han and Thomas Blon and Benjamin Lassagne and G{\'e}raldine Ballon and Y. Lu and K. Watanabe and T. Taniguchi and Bernhard Urbaszek and Jo{\~a}o Marcelo J. Lopes and Xavier Marie},
  journal={Applied Physics Letters},
We present magneto-photoluminescence measurements in a hybrid 2D semiconductor/ ferromagnetic structure consisting of MoSe2/hBN/Ni. When the Nickel layer is magnetized, we observe circularly polarized photoluminescence of the trion peak in MoSe2 monolayer under linearly polarized excitation. This build-up of circular polarization can reach a measured value of about 4% when the magnetization of Ni is saturated perpendicularly to the sample plane, and changes its sign when the magnetization is… 

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