Conductance of Rashba spin-split systems with ferromagnetic contacts

M. Høgsbro Larsen, A.M. Lunde, Karsten Flensberg

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    Abstract

    We study theoretically the conductance of heterostructures with ferromagnetic (F) conductors and a two-dimensional electron gas with Rashba (R) spin-orbit interaction using a two-channel Landauer formula. 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.
    Original languageEnglish
    JournalPhysical Review B. Condensed Matter and Materials Physics
    Volume66
    Issue number3
    Pages (from-to)033304
    Number of pages4
    ISSN2469-9950
    DOIs
    Publication statusPublished - 2002

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