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Breaking of valley degeneracy by magnetic field in monolayer MoSe2
David MacNeill, Colin Heikes, Kin Fai Mak +5
Using polarization-resolved photoluminescence spectroscopy, we investigate valley degeneracy breaking by out-of-plane magnetic field in back-gated monolayer MoSe devices. We ob…
The Valley Hall Effect in MoS2 Transistors
Kin Fai Mak, Kathryn L. McGill, Jiwoong Park +1
Electrons in 2-dimensional crystals with a honeycomb lattice structure possess a new valley degree of freedom (DOF) in addition to charge and spin. Each valley is predicted to exhi…
New Mechanism for Strongly Bound Excitons in Gapless Two-Dimensional Structures
Yufeng Liang, Ryan Soklaski, Shouting Huang +4
Common wisdom asserts that bound excitons cannot form in high-dimensional (d>1) metallic structures because of their overwhelming screening and unavoidable resonance with nearby co…