Quantitative separation of the anisotropic magnetothermopower and planar Nernst effect by the rotation of an in-plane thermal gradient

Reimer O, Meier D, Bovender M, Helmich L, Dreessen J-O, Krieft J, Shestakov AS, Back CH, Schmalhorst J-M, Hütten A, Reiss G, et al. (2017)
Scientific Reports 7: 40586.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
A thermal gradient as the driving force for spin currents plays a key role in spin caloritronics. In this field the spin Seebeck effect (SSE) is of major interest and was investigated in terms of in-plane thermal gradients inducing perpendicular spin currents (transverse SSE) and out-of-plane thermal gradients generating parallel spin currents (longitudinal SSE). Up to now all spincaloric experiments employ a spatially fixed thermal gradient. Thus, anisotropic measurements with respect to well defined crystallographic directions were not possible. Here we introduce a new experiment that allows not only the in-plane rotation of the external magnetic field, but also the rotation of an in-plane thermal gradient controlled by optical temperature detection. As a consequence, the anisotropic magnetothermopower and the planar Nernst effect in a permalloy thin film can be measured simultaneously. Thus, the angular dependence of the magnetothermopower with respect to the magnetization direction reveals a phase shift, that allows the quantitative separation of the thermopower, the anisotropic magnetothermopower and the planar Nernst effect.
Erscheinungsjahr
2017
Zeitschriftentitel
Scientific Reports
Band
7
Art.-Nr.
40586
ISSN
2045-2322
Finanzierungs-Informationen
Article Processing Charge funded by the Deutsche Forschungsgemeinschaft and the Open Access Publication Fund of Bielefeld University.
Page URI
https://pub.uni-bielefeld.de/record/2908018

Zitieren

Reimer O, Meier D, Bovender M, et al. Quantitative separation of the anisotropic magnetothermopower and planar Nernst effect by the rotation of an in-plane thermal gradient. Scientific Reports. 2017;7: 40586.
Reimer, O., Meier, D., Bovender, M., Helmich, L., Dreessen, J. - O., Krieft, J., Shestakov, A. S., et al. (2017). Quantitative separation of the anisotropic magnetothermopower and planar Nernst effect by the rotation of an in-plane thermal gradient. Scientific Reports, 7, 40586. doi:10.1038/srep40586
Reimer, O., Meier, D., Bovender, M., Helmich, L., Dreessen, J. - O., Krieft, J., Shestakov, A. S., Back, C. H., Schmalhorst, J. - M., Hütten, A., et al. (2017). Quantitative separation of the anisotropic magnetothermopower and planar Nernst effect by the rotation of an in-plane thermal gradient. Scientific Reports 7:40586.
Reimer, O., et al., 2017. Quantitative separation of the anisotropic magnetothermopower and planar Nernst effect by the rotation of an in-plane thermal gradient. Scientific Reports, 7: 40586.
O. Reimer, et al., “Quantitative separation of the anisotropic magnetothermopower and planar Nernst effect by the rotation of an in-plane thermal gradient”, Scientific Reports, vol. 7, 2017, : 40586.
Reimer, O., Meier, D., Bovender, M., Helmich, L., Dreessen, J.-O., Krieft, J., Shestakov, A.S., Back, C.H., Schmalhorst, J.-M., Hütten, A., Reiss, G., Kuschel, T.: Quantitative separation of the anisotropic magnetothermopower and planar Nernst effect by the rotation of an in-plane thermal gradient. Scientific Reports. 7, : 40586 (2017).
Reimer, Oliver, Meier, Daniel, Bovender, Michel, Helmich, Lars, Dreessen, Jan-Oliver, Krieft, Jan, Shestakov, Anatoly S., Back, Christian H., Schmalhorst, Jan-Michael, Hütten, Andreas, Reiss, Günter, and Kuschel, Timo. “Quantitative separation of the anisotropic magnetothermopower and planar Nernst effect by the rotation of an in-plane thermal gradient”. Scientific Reports 7 (2017): 40586.
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2 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

Longitudinal spin Seebeck coefficient: heat flux vs. temperature difference method.
Sola A, Bougiatioti P, Kuepferling M, Meier D, Reiss G, Pasquale M, Kuschel T, Basso V., Sci Rep 7(), 2017
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PMID: 29286760

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