Publikation:

Detection of DC currents and resistance measurements in longitudinal spin Seebeck effect experiments on Pt/YIG and Pt/NFO

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Meier_2-1fljv76xx80q55.pdf
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Datum

2016

Autor:innen

Meier, Daniel
Kuschel, Timo
Meyer, Sibylle
Shen, Liming
Gupta, Arunava
Schmalhorst, Jan-Michael
Reiss, Günter

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URI (zitierfähiger Link)
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1fljv76xx80q55
DOI (zitierfähiger Link)
https://doi.org/10.1063/1.4942796
ArXiv-ID
http://arxiv.org/abs/1601.00304

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Attribution 3.0 Unported

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Open Access-Veröffentlichung
Open Access Gold

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Physik: Publikationen
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Published

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AIP Advances. American Institute of Physics (AIP). 2016, 6(5), 056302. eISSN 2158-3226. Available under: doi: 10.1063/1.4942796

Zusammenfassung

In this work we investigated thin films of the ferrimagnetic insulators Y 3Fe5O12 and NiFe2O4 capped with thin Pt layers in terms of the longitudinal spin Seebeck effect (LSSE). The electric response detected in the Pt layer under an out-of-plane temperature gradient can be interpreted as a pure spin current converted into a charge current via the inverse spin Hall effect. Typically, the transverse voltage is the quantity investigated in LSSE measurements (in the range of μV). Here, we present the directly detected DC current (in the range of nA) as an alternative quantity. Furthermore, we investigate the resistance of the Pt layer in the LSSE configuration. We found an influence of the test current on the resistance. The typical shape of the LSSE curve varies for increasing test currents.

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530 Physik

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ISO 690MEIER, Daniel, Timo KUSCHEL, Sibylle MEYER, Sebastian T. B. GOENNENWEIN, Liming SHEN, Arunava GUPTA, Jan-Michael SCHMALHORST, Günter REISS, 2016. Detection of DC currents and resistance measurements in longitudinal spin Seebeck effect experiments on Pt/YIG and Pt/NFO. In: AIP Advances. American Institute of Physics (AIP). 2016, 6(5), 056302. eISSN 2158-3226. Available under: doi: 10.1063/1.4942796
BibTex
@article{Meier2016-01-03T15:27:31ZDetec-52776,
  year={2016},
  doi={10.1063/1.4942796},
  title={Detection of DC currents and resistance measurements in longitudinal spin Seebeck effect experiments on Pt/YIG and Pt/NFO},
  number={5},
  volume={6},
  journal={AIP Advances},
  author={Meier, Daniel and Kuschel, Timo and Meyer, Sibylle and Goennenwein, Sebastian T. B. and Shen, Liming and Gupta, Arunava and Schmalhorst, Jan-Michael and Reiss, Günter},
  note={Article Number: 056302}
}
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    <dcterms:abstract xml:lang="eng">In this work we investigated thin films of the ferrimagnetic insulators Y &lt;sub&gt;3&lt;/sub&gt;Fe&lt;sub&gt;5&lt;/sub&gt;O&lt;sub&gt;12&lt;/sub&gt; and NiFe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt; capped with thin Pt layers in terms of the longitudinal spin Seebeck effect (LSSE). The electric response detected in the Pt layer under an out-of-plane temperature gradient can be interpreted as a pure spin current converted into a charge current via the inverse spin Hall effect. Typically, the transverse voltage is the quantity investigated in LSSE measurements (in the range of μV). Here, we present the directly detected DC current (in the range of nA) as an alternative quantity. Furthermore, we investigate the resistance of the Pt layer in the LSSE configuration. We found an influence of the test current on the resistance. The typical shape of the LSSE curve varies for increasing test currents.</dcterms:abstract>
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