Optical Investigation of Monolayer and Bulk Tungsten Diselenide (WSe₂) in High Magnetic Fields.

  title={Optical Investigation of Monolayer and Bulk Tungsten Diselenide (WSe₂) in High Magnetic Fields.},
  author={A A Mitioglu and Paulina Płochocka and Andr{\'e}s Granados del {\'A}guila and Peter C M Christianen and George Deligeorgis and S Anghel and Leonid Kulyuk and Duncan K. Maude},
  journal={Nano letters},
  volume={15 7},
Optical spectroscopy in high magnetic fields B ≤ 65 T is used to reveal the very different nature of carriers in monolayer and bulk transition metal dichalcogenides. In monolayer WSe2, the exciton emission shifts linearly with the magnetic field and exhibits a splitting that originates from the magnetic field induced valley splitting. The monolayer data can be described using a single particle picture with a Dirac-like Hamiltonian for massive Dirac Fermions, with an additional term to… 

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