Space- and time-resolved Seebeck and Nernst voltages in laser-heated permalloy/gold microstructures
von Bieren, Arndt; Ansermet, Jean-Philippe; Grundler, Dirk
2013

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Abstract

Thermoelectric effects in microstructured permalloy (Py) / gold (Au) wires are investigated using spatially and time-resolved measurements based on scanning focused laser heating. Supported by numerical simulations of the temperature distribution, we identify two major contributions to the laser-induced signals: (i) the Seebeck effect due to thermocouples of Py/Au and (ii) the anomalous Nernst effect (ANE) in Py with a coefficient of NANE 0:5 V/K. ANE-based magnetic imaging of magnetic domains and magnetization reversal is demonstrated with a lateral resolution on the m-scale.

Details

Title Space- and time-resolved Seebeck and Nernst voltages in laser-heated permalloy/gold microstructures
Author(s) von Bieren, Arndt ; Ansermet, Jean-Philippe ; Grundler, Dirk
Published in Applied Physics Letters
Volume 102
Issue 5
Pages 052408
Date 2013
Publisher American Institute of Physics
ISSN 0003-6951
Keywords
DOI https://doi.org/10.1063/1.4789974
Other identifier(s) View record in Web of Science
Laboratories LMGN
LPMN
Record Appears in Scientific production and competences > STI - School of Engineering > IMX - Institute of Materials > LMGN - Laboratory of Nanoscale Magnetic Materials and Magnonics
Scientific production and competences > SB - School of Basic Sciences > SB Archives > LPMN - Laboratory of the Physics of Nanostructured Materials
Peer-reviewed publications
Work outside EPFL
Journal Articles
Published
Record creation date 2013-02-06

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