Thermally driven spin and charge currents in thin NiFe2O 4/Pt films

D. Meier; T. Kuschel; L. Shen; A. Gupta; T. Kikkawa; K. Uchida; E. Saitoh; J. M. Schmalhorst; G. Reiss

doi:10.1103/PhysRevB.87.054421

Thermally driven spin and charge currents in thin NiFe₂O ₄/Pt films

D. Meier, T. Kuschel, L. Shen, A. Gupta, T. Kikkawa, K. Uchida, E. Saitoh, J. M. Schmalhorst, G. Reiss

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115 引用（Scopus）

摘要

We present results on the longitudinal spin Seebeck effect (LSSE) shown by semiconducting ferrimagnetic NiFe₂O₄/Pt films from room temperature down to 50 K base temperature. The temperature dependence of the conductivity has been studied in parallel to obtain information about the origin of the electric potentials detected at the Pt coverage of the ferrimagnet in order to distinguish the LSSE from the anomalous Nernst effect. Furthermore, the dependence of the LSSE on temperature gradients as well as the influence of an external magnetic field direction is investigated.

源语言	英语
文章编号	054421
期刊	Physical Review B - Condensed Matter and Materials Physics
卷	87
期	5
DOI	https://doi.org/10.1103/PhysRevB.87.054421
出版状态	已出版 - 19 2月 2013
已对外发布	是

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AU - Meier, D.

AU - Kuschel, T.

AU - Shen, L.

AU - Gupta, A.

AU - Kikkawa, T.

AU - Uchida, K.

AU - Saitoh, E.

AU - Schmalhorst, J. M.

AU - Reiss, G.

PY - 2013/2/19

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N2 - We present results on the longitudinal spin Seebeck effect (LSSE) shown by semiconducting ferrimagnetic NiFe2O4/Pt films from room temperature down to 50 K base temperature. The temperature dependence of the conductivity has been studied in parallel to obtain information about the origin of the electric potentials detected at the Pt coverage of the ferrimagnet in order to distinguish the LSSE from the anomalous Nernst effect. Furthermore, the dependence of the LSSE on temperature gradients as well as the influence of an external magnetic field direction is investigated.

AB - We present results on the longitudinal spin Seebeck effect (LSSE) shown by semiconducting ferrimagnetic NiFe2O4/Pt films from room temperature down to 50 K base temperature. The temperature dependence of the conductivity has been studied in parallel to obtain information about the origin of the electric potentials detected at the Pt coverage of the ferrimagnet in order to distinguish the LSSE from the anomalous Nernst effect. Furthermore, the dependence of the LSSE on temperature gradients as well as the influence of an external magnetic field direction is investigated.

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JO - Physical Review B - Condensed Matter and Materials Physics

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Thermally driven spin and charge currents in thin NiFe2O 4/Pt films

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Thermally driven spin and charge currents in thin NiFe₂O ₄/Pt films