Valley-dependent spin transport in monolayer transition-metal dichalcogenides

Abstract

We study valley-dependent spin transport theoretically in monolayer transition-metal dichalcogenides in which a variety of spin and valley physics are expected because of spin-valley coupling. The results show that the spins are valley-selectively excited with appropriate carrier doping and valley polarized spin current (VPSC) is generated. The VPSC leads to the spin-current Hall effect, transverse spin accumulation originating from the Berry curvature in momentum space. The results indicate that spin excitations with spin-valley coupling lead to both valley and spin transport, which is promising for future low-consumption nanodevice applications.

arXiv comment6 pages, 5 figures

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• Correlation-driven topological transition in Janus VSiGeP2As2
• Nonequilibrium Theory of Photoinduced Valley Hall Effect
• Multiferroic nematic d-wave altermagnetism driven by orbital-order on the honeycomb lattice
• Effect of vertex corrections on the enhancement of Gilbert damping in spin pumping into a two-dimensional electron gas
• Strong In-plane Anisotropy in the Electronic Properties of Doped Transition Metal Dichalcogenides exhibited in W1-xNbxS2
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• Theory of inverse Rashba-Edelstein effect induced by spin pumping into a two-dimensional electron gas
• Twisted bilayer graphene reveals its flat bands under spin pumping
• Spin Seebeck Effect in Graphene
• Valley spin-acoustic resonance in MoS${}_2$ monolayers
• The crystal structure, chemical bonding and magnetic properties of the intercalation compounds Cr${}_x$ZrTe${}_2$ ($x$ = 0-0.3)
• Coupled spin and valley Hall effects driven by coherent tunneling
• Optically induced spin Hall current in Janus transition-metal dichalcogenides
• Spin Pumping into two-dimensional systems
• Spin Pumping into Carbon Nanotubes
• Microscopic theory of Rashba-Edelstein magnetoresistance
• Optimising motion-induced spin transfer
• Spin pumping into quantum spin chains
• Quantum oscillations of valley current driven by microwave irradiation in transition-metal dichalcogenide/ferromagnet hybrids
• Spin and valley filter based on two-dimensional WSe${}_2$ heterostructures