Thermoelectric Effects in Magnetic Nanostructures

Details Thermoelectric Effects in Magnetic Nanostructures Thermoelectric Effects in Magnetic Nanostructures

2009-01-14

arxiv.org/abs/0901.2126v3

Phys. Rev. B 79, 174426 (2009). Editors' Suggestion

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

14 pages, 7 figures, 1 table. Published

Scientific paper

10.1103/PhysRevB.79.174426

We model and evaluate the Peltier and Seebeck effects in magnetic multilayer nanostructures by a finite-element theory of thermoelectric properties. We present analytical expressions for the thermopower and the current-induced temperature changes due to Peltier cooling/heating. The thermopower of a magnetic element is in general spin-polarized, leading to spin-heat coupling effects. Thermoelectric effects in spin valves depend on the relative alignment of the magnetization directions and are sensitive to spin-flip scattering as well as inelastic collisions in the normal metal spacer.

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