Rashba Spin-Orbit-Coupling Based Electron-Spin Filter in Double-Layered Semiconductor Nanostructure
Ke-Yu Lu, Zhi-Yi He, Mi-Mi Zu, Shi-Yu Guo
Abstract
Based on a double-layered semiconductor nanostructure (DLSN)-InSb/GaSb, we propose a controllable electron-spin filter for spintronics device applications. Electron-spin polarization is induced by Rashba spin-orbit coupling inside the DLSN. Both magnitude and sign of spin polarization ratio can be manipulated by externally-applied electric field or the semiconductor-layer thickness.
Topics & Concepts
SpintronicsCondensed matter physicsSemiconductorSpinplasmonicsSpin polarizationSpin–orbit interactionElectronNanostructureMaterials scienceElectric fieldSpin (aerodynamics)Semiconductor nanostructuresPolarization (electrochemistry)Rashba effectCoupling (piping)Spin Hall effectOptoelectronicsPhysicsNanotechnologyFerromagnetismChemistryQuantum mechanicsPhysical chemistryMetallurgyThermodynamicsQuantum and electron transport phenomenaSemiconductor Quantum Structures and DevicesSemiconductor materials and devices