Time-resolved measurement of the tunnel magneto-Seebeck effect in a single magnetic tunnel junction
Böhnke A, Walter M, Roschewsky N, Eggebrecht T, Drewello V, Rott K, Muenzenberg M, Thomas A, Reiss G (2013)
Review of Scientific Instruments 84(6): 63905.
Zeitschriftenaufsatz
| Veröffentlicht | Englisch
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Autor*in
Böhnke, AlexanderUniBi;
Walter, Marvin;
Roschewsky, Niklas;
Eggebrecht, Tim;
Drewello, VolkerUniBi;
Rott, KarstenUniBi;
Muenzenberg, Markus;
Thomas, AndyUniBi 
;
Reiss, GünterUniBi
;
Reiss, GünterUniBi Einrichtung
Abstract / Bemerkung
Recently, several groups have reported spin-dependent thermoelectric effects in magnetic tunnel junctions. In this paper, we present a setup for time-resolved measurements of thermovoltages and thermocurrents of a single micro-to nanometer-scaled tunnel junction. An electrically modulated diode laser is used to create a temperature gradient across the tunnel junction layer stack. This laser modulation technique enables the recording of time-dependent thermovoltage signals with a temporal resolution only limited by the preamplifier for the thermovoltage. So far, time-dependent thermovoltage could not be interpreted. Now, with the setup presented in this paper, it is possible to distinguish different Seebeck voltage contributions to the overall measured voltage signal in the mu s time regime. A model circuit is developed that explains those voltage contributions on different sample types. Further, it will be shown that a voltage signal arising from the magnetic tunnel junction can only be observed when the laser spot is directly centered on top of the magnetic tunnel junction, which allows a lateral separation of the effects. (C) 2013 AIP Publishing LLC.
Erscheinungsjahr
2013
Zeitschriftentitel
Review of Scientific Instruments
Band
84
Ausgabe
6
Art.-Nr.
63905
ISSN
0034-6748
Page URI
https://pub.uni-bielefeld.de/record/2622370
Zitieren
Böhnke A, Walter M, Roschewsky N, et al. Time-resolved measurement of the tunnel magneto-Seebeck effect in a single magnetic tunnel junction. Review of Scientific Instruments. 2013;84(6): 63905.
Böhnke, A., Walter, M., Roschewsky, N., Eggebrecht, T., Drewello, V., Rott, K., Muenzenberg, M., et al. (2013). Time-resolved measurement of the tunnel magneto-Seebeck effect in a single magnetic tunnel junction. Review of Scientific Instruments, 84(6), 63905. doi:10.1063/1.4811130
Böhnke, Alexander, Walter, Marvin, Roschewsky, Niklas, Eggebrecht, Tim, Drewello, Volker, Rott, Karsten, Muenzenberg, Markus, Thomas, Andy, and Reiss, Günter. 2013. “Time-resolved measurement of the tunnel magneto-Seebeck effect in a single magnetic tunnel junction”. Review of Scientific Instruments 84 (6): 63905.
Böhnke, A., Walter, M., Roschewsky, N., Eggebrecht, T., Drewello, V., Rott, K., Muenzenberg, M., Thomas, A., and Reiss, G. (2013). Time-resolved measurement of the tunnel magneto-Seebeck effect in a single magnetic tunnel junction. Review of Scientific Instruments 84:63905.
Böhnke, A., et al., 2013. Time-resolved measurement of the tunnel magneto-Seebeck effect in a single magnetic tunnel junction. Review of Scientific Instruments, 84(6): 63905.
A. Böhnke, et al., “Time-resolved measurement of the tunnel magneto-Seebeck effect in a single magnetic tunnel junction”, Review of Scientific Instruments, vol. 84, 2013, : 63905.
Böhnke, A., Walter, M., Roschewsky, N., Eggebrecht, T., Drewello, V., Rott, K., Muenzenberg, M., Thomas, A., Reiss, G.: Time-resolved measurement of the tunnel magneto-Seebeck effect in a single magnetic tunnel junction. Review of Scientific Instruments. 84, : 63905 (2013).
Böhnke, Alexander, Walter, Marvin, Roschewsky, Niklas, Eggebrecht, Tim, Drewello, Volker, Rott, Karsten, Muenzenberg, Markus, Thomas, Andy, and Reiss, Günter. “Time-resolved measurement of the tunnel magneto-Seebeck effect in a single magnetic tunnel junction”. Review of Scientific Instruments 84.6 (2013): 63905.
Daten bereitgestellt von European Bioinformatics Institute (EBI)
2 Zitationen in Europe PMC
Daten bereitgestellt von Europe PubMed Central.
Large magneto-Seebeck effect in magnetic tunnel junctions with half-metallic Heusler electrodes.
Boehnke A, Martens U, Sterwerf C, Niesen A, Huebner T, von der Ehe M, Meinert M, Kuschel T, Thomas A, Heiliger C, Münzenberg M, Reiss G., Nat Commun 8(1), 2017
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