2002/02/26 by Edward McCann, Vladimir I. Fal’ko, Vladimir I. Fal'ko
Physics and Astronomy · #Antiparallel (mathematics) #Condensed matter physics #Electrical resistivity and conductivity #Electron #Ferromagnetism #Magnetic field #Magnetic properties of thin films #Magnon #Materials science #Mesoscopic physics #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Seebeck coefficient #Tunnel junction #Tunnel magnetoresistance #cond-mat.mes-hall
paper · pdf · doi:10.1063/1.1519730
published as Appl. Phys. Lett. 81, 3609 (2002) · 3 pages, 1 eps figure
arxiv created 2002/02/26 · openalex publication_date 2002/10/31 · arxiv updated 2009/11/30 · openalex created_date 2020/11/23 · openalex updated_date 2026/08/05
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, SAP∼−(kB/e), in contrast to SP≈0 for a parallel configuration.