Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5490166 | Journal of Magnetism and Magnetic Materials | 2018 | 16 Pages |
Abstract
We have studied thermoelectric conversion in all-ferromagnetic CoδFe100-δ/YIG bilayer junctions as a function of the chemical composition δ. We performed measurements of the transverse thermoelectric voltage upon application of a magnetic field. The voltage measured in the longitudinal spin Seebeck effect configuration shows a sign reversal at δ = 40%, which cannot be explained by the conventional electronic transport, such as the anomalous Nernst and Hall effects in the CoδFe100-δ layer. Our results suggest a possible role of the sd-type exchange interaction between Co40Fe60 and YIG at the interface as a possible origin for the observed behavior.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
R. Ramos, P. Wongjom, R. Iguchi, A. Yagmur, Z. Qiu, S. Pinitsoontorn, K. Uchida, E. Saitoh,