Observation of the spin Seebeck effect in epitaxial Fe3O 4 thin films

R. Ramos, T. Kikkawa, K. Uchida, H. Adachi, I. Lucas, M. H. Aguirre, P. Algarabel, L. Morellón, S. Maekawa, E. Saitoh, M. R. Ibarra

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Abstract

We report the experimental observation of the spin Seebeck effect in magnetite thin films. The signal observed at temperatures above the Verwey transition is a contribution from both the anomalous Nernst (ANE) and spin Seebeck (SSE) effects. The contribution from the ANE of the Fe3O 4 layer to the SSE is found to be negligible due to the resistivity difference between Fe3O4 and Pt layers. Below the Verwey transition, the SSE is free from the ANE of the ferromagnetic layer and it is also found to dominate over the ANE due to magnetic proximity effect on the Pt layer.

Original languageEnglish
Article number072413
JournalApplied Physics Letters
Volume102
Issue number7
DOIs
Publication statusPublished - Feb 18 2013

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Ramos, R., Kikkawa, T., Uchida, K., Adachi, H., Lucas, I., Aguirre, M. H., Algarabel, P., Morellón, L., Maekawa, S., Saitoh, E., & Ibarra, M. R. (2013). Observation of the spin Seebeck effect in epitaxial Fe3O 4 thin films. Applied Physics Letters, 102(7), [072413]. https://doi.org/10.1063/1.4793486