Research output: Contribution to Journal/Magazine › Journal article › peer-review
<mark>Journal publication date</mark> | 4/11/2002 |
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<mark>Journal</mark> | Applied Physics Letters |
Issue number | 19 |
Volume | 81 |
Number of pages | 3 |
Pages (from-to) | 3609-3611 |
Publication Status | Published |
<mark>Original language</mark> | English |
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)similar to-(k(B)/e), in contrast to S(P)approximate to0 for a parallel configuration. (C) 2002 American Institute of Physics.