Spin Filtering via Resonant Reflection of Relativistic Surface States

Autor:	Nechaev, I. A., Krasovskii, E. E.
Rok vydání:	2017
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Phys. Rev. B 97, 041407 (2018)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.97.041407
Popis:	A microscopic approach is developed to scattering of surface states from a non-magnetic linear defect at a surface with strong spin-orbit interaction. Spin-selective reflection resonances in scattering of Rashba-split surface states by an atomic stripe are theoretically discovered in a proof-of-principle calculation for a model crystal potential. Spin-filtering properties of such linear defects are analyzed within an envelope-function formalism for a perturbed surface based on the Rashba Hamiltonian. The continuous Rashba model is found to be in full accord with the microscopic theory, which reveals the essential physics behind the scattering resonance. The spin-dependent reflection suggests a novel mechanism to manipulate spins on the nanoscale. Comment: 6 pages, 4 figures, 1 table
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1712.09593 Zobrazit plný text záznamu View this record from Arxiv