Observation of the spin Seebeck effect in epitaxial Fe3O4 thin films

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

doi:10.1063/1.4793486

Observation of the spin Seebeck effect in epitaxial Fe3O4 thin films

Materials Science 2016-05-23 v1

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

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We report the first 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 effects (SSE). The contribution from the ANE of the Fe3O4 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.

Keywords

spin Seebeck effect magnetite thin films anomalous Nernst effect Verwey transition magnetic proximity effect epitaxial films

Cite

@article{arxiv.1212.3142,
  title  = {Observation of the spin Seebeck effect in epitaxial Fe3O4 thin films},
  author = {R. Ramos and T. Kikkawa and K. Uchida and H. Adachi and I. Lucas and M. H. Aguirre and P. Algarabel and L. Morellon and S. Maekawa and E. Saitoh and M. R. Ibarra},
  journal= {arXiv preprint arXiv:1212.3142},
  year   = {2016}
}

Comments

13 pages, 3 figures

Observation of the spin Seebeck effect in epitaxial Fe3O4 thin films

Abstract

Keywords

Cite

Comments

Related papers