10.9k citations
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6 papers · 2 filters
Perfect Valley Filter in Topological Domain Wall
Hui Pan, Xin Li, Fan Zhang +1
We propose a realization of perfect valley filters based on the chiral domain-wall channels between a quantum anomalous Hall insulator and a quantum valley Hall insulator. Uniquely…
Critical Behavior of Four-Terminal Conductance of Bilayer Graphene Domain Walls
Benjamin J. Wieder, Fan Zhang, C. L. Kane
Bilayer graphene in a perpendicular electric field can host domain walls between regions of reversed field direction or interlayer stacking. The gapless modes propagating along the…
Magnetic Control of Valley Pseudospin in Monolayer WSe2
Grant Aivazian, Zhirui Gong, Aaron M Jones +7
Local energy extrema of the bands in momentum space, or valleys, can endow electrons in solids with pseudo-spin in addition to real spin. In transition metal dichalcogenides this v…
Spontaneous Layer-Pseudospin Domain Walls in Bilayer Graphene
Xiao Li, Fan Zhang, Qian Niu +1
Bilayer graphene is susceptible to a family of unusual broken symmetry states with spin and valley dependent layer polarization. We report on a microscopic study of the domain wall…
Distinct Competing Ordered ν=2 States in Bilayer Graphene
J. Velasco, Y. Lee, Fan Zhang +6
Because of its large density-of-states and the 2π Berry phase near its low-energy band-contact points, neutral bilayer graphene (BLG) at zero magnetic field (B) is susceptible to c…
Valley Contrasting Magnetoluminescence in Monolayer MoS Quantum Hall Systems
Rui-Lin Chu, Xiao Li, Sanfeng Wu +4
The valley dependent optical selection rules in recently discovered monolayer group-VI transition metal dichalcogenides (TMDs) make possible optical control of valley polarization,…