Conductance of Rashba spin-split systems with ferromagnetic contacts

Details Conductance of Rashba spin-split systems with ferromagnetic contacts Conductance of Rashba spin-split systems with ferromagnetic contacts

2001-12-11

arxiv.org/abs/cond-mat/0112175v1

Phys. Rev. B 66, 033304 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 1 figure

Scientific paper

10.1103/PhysRevB.66.033304

We study theoretically the conductance of heterostructures with ferromagnetic conductors (F) and a two dimensional electron gas with Rashba spin-orbit interaction (R) using the Landauer-B\"{u}ttiker formalism. Assuming a one-dimensional model, we first find the $S$-matrix for the FR interface. This result is then applied to different devices such as a FRF structure, first suggested by Datta and Das[Appl. Phys. Lett. 56, 665 (1990)]. We find analytic results for the conductance for the case of collinear magnetization.

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