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Spin diffusion induced by pulsed-laser heating and the role of spin heat accumulation
2017
Physical review B
We present a model for describing spin-diffusion in normal metal/ferromagnetic metal heterostructures induced by pulsed-laser heating. The model is based on the assumptions that electronic heat currents give rise to the spin-dependent Seebeck effect and that ultrafast demagnetization generates spin accumulation with a rate proportional to the demagnetization rate measured. Spin-diffusion currents are then driven by gradients in spin accumulation and electron temperature. The model considers
doi:10.1103/physrevb.95.014402
fatcat:rthcnthv6bd6vaolouvz7mko24