Magnetothermopower and magnon-assisted transport in ferromagnetic tunnel junctions

Edward McCann, Vladimir I. Fal'Ko

    Research output: Contribution to journalArticlepeer-review


    We present a model of the thermopower in a mesoscopic tunnel junction between two ferromagnetic metals based upon magnon-assisted tunneling processes. In our model, the thermopower is generated in the course of thermal equilibration between two baths of magnons, mediated by electrons. We predict a particularly large thermopower effect in the case of a junction between two half-metallic ferromagnets with antiparallel polarizations, S AP∼-(kB/e), in contrast to SP≈0 for a parallel configuration.

    Original languageEnglish
    Pages (from-to)3609-3611
    Number of pages3
    JournalApplied Physics Letters
    Issue number19
    Publication statusPublished - 4 Nov 2002

    Research Beacons, Institutes and Platforms

    • National Graphene Institute


    Dive into the research topics of 'Magnetothermopower and magnon-assisted transport in ferromagnetic tunnel junctions'. Together they form a unique fingerprint.

    Cite this