Spin filtering on a ring with Rashba hamiltonian

Abstract

We consider a quantum graph consisting of a ring with Rashba hamiltonian and an arbitrary number of semi-infinite wires attached. We describe the scattering matrix for this system and investigate spin filtering for a three terminal device.

6 figures

References in corpus (7)

• Rashba spin splitting in two-dimensional electron and hole systems
• Persistent current in ballistic mesoscopic rings with Rashba spin-orbit coupling
• Filtering spin with tunnel-coupled electron wave guides
• The Generalized Star Product and the Factorization of Scattering Matrices on Graphs
• A prohibition of equilibrium spin currents in multi-terminal ballistic devices
• An approximation to ${\delta }^{\prime }$ couplings on graphs
• Irregular Dynamics in a Solvable One-Dimensional Quantum Graph