Scaling of the spin Seebeck effect in bulk and thin film

2017/05/06 by K. Morrison, Morrison, K., Andrew J. Caruana +3
Engineering · Physics and Astronomy · #FOS: Physical sciences #Magnetic properties of thin films #Magneto-Optical Properties and Applications #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Power Transformer Diagnostics and Insulation

paper · pdf · doi:10.48550/arxiv.1705.02491

openalex publication_date 2017/05/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Whilst there have been several reports of the spin Seebeck effect to date, comparison of the absolute voltage(s) measured, in particular for thin films, is limited. In this letter we demonstrate normalization of the spin Seebeck effect for Fe₃O₄:Pt thin film and YIG:Pt bulk samples with respect to the heat flux J_q, and temperature difference ΔT. We demonstrate that the standard normalization procedures for these measurements do not account for an unexpected scaling of the measured voltage with area that is observed in both bulk and thin film. Finally, we present an alternative spin Seebeck coefficient for substrate and sample geometry independent characterization of the spin Seebeck effect.

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