Helical liquid of snake states
arXiv:1305.7138 · doi:10.1103/PhysRevB.88.195404
Abstract
We derive an exact solution to the problem of spin snake states induced in a nonhomogeneous magnetic field by a combined action of the Rashba spin-orbit and Zeeman fields. In an antisymmetric magnetic field the spin snake states are nonlocal composite particles, originating from spatially separated entangled spins. Adding an external homogeneous magnetic field breaks the spin-parity symmetry gapping out the spectral branches, which results in a regular beating pattern of the spin current. These new phenomena in a helical liquid of snake states are proposed for an experimental realization.
5 pages, 3 figures
References in corpus (12)
- Transition from fractional to Majorana fermions in Rashba nanowires
- Peculiar Nature of Snake States in Graphene
- Persistent spin current in nano-devices and definition of the spin current
- Conductance quantization and snake states in graphene magnetic waveguides
- Snake States in Graphene p-n Junctions
- Magnetic properties of HgTe quantum wells
- Nonlocal transport near the charge neutrality point in a two-dimensional electron-hole system
- Landau levels, edge states, and strained magnetic waveguides in graphene monolayers with enhanced spin-orbit interaction
- Snake states and Klein tunneling in a graphene Hall bar with a pn-junction
- Spin Hall Drag
- Proposal for a Datta-Das transistor in the quantum Hall regime
- Spin current generation from Coulomb-Rashba interaction in semiconductor bilayers