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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Abstract

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.

Original language	English
Article number	054421
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	87
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.87.054421
Publication status	Published - 2013 Feb 19

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10.1103/PhysRevB.87.054421

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

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