Kavli Affiliate: Mamoru Matsuo
| First 5 Authors: Xin Hu, Xin Hu, , ,
| Summary:
We theoretically study spin and valley transport in a TMDC/ferromagnet
heterostructure under a perpendicular magnetic field. We find that
microwave-driven spin pumping induces a valley-selective spin excitation, a
direct consequence of the valley-asymmetric Landau levels in the TMDC
conduction band. This process generates a pure valley current which, as our
central finding, exhibits pronounced quantum oscillations as a function of
chemical potential. These oscillations provide a definitive experimental
signature of the quantized valley states and establish a new pathway to
interface spintronics and valleytronics.
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