Spin filtering in nanowire directional coupler

Autor:	Dias, M. Rebello Sousa, Lopez-Richard, V., Marques, G. E., Ulloa, S. E.
Rok vydání:	2013
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Druh dokumentu:	Working Paper
DOI:	10.1209/0295-5075/106/17002
Popis:	The spin transport characteristics of a nanowire directional electronic coupler have been evaluated theoretically via a transfer matrix approach. The application of a gate field in the region of mixing allows for control of spin current through the different leads of the coupler via the Rashba spin-orbit interaction. The combination of spin-orbit interaction and applied gate voltages on different legs of the coupler give rise to a controllable modulation of the spin polarization. Both structural factors and field strength tuning lead to a rich phenomenology that could be exploited in spintronic devices. Comment: 9 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1308.1882 Zobrazit plný text záznamu View this record from Arxiv