Thermoelectric Effects in Spin Valves Based on Layered Magnetic Structures

H.W. Kunert a and J. Barnaśb aDepartment of Physics, University of Pretoria, 0001 Pretoria, South Africa bFaculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

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General aspects of thermoelectric effects in spin valves consisting of two magnetic layers separated by a nonmagnetic spacing layer are considered, with the main focus on the spin Seebeck effects. The Seebeck and spin Seebeck effects are considered in both current-in-plane and current-perpendicular-to-plane geometries. The corresponding thermopower and spin thermopower in the macroscopic limit of electronic transport are also considered. Physical origin of the spin effects is discussed in detail.

DOI: 10.12693/APhysPolA.132.124 PACS numbers: 72.25.Mk, 65.80.-g, 68.65.Ac