Thermopower and GMR of a single Co-Cu multilayer nanowire

We introduce here a novel technique specifically designed to measure the thermoelectrical properties of nanoscale ferromagnetic wires, prepared by electrodeposition in nanoporous membranes. The conditions of measurements have been determined through experiments performed on uniform Co and Cu wires m...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2002-09, Vol.38 (5), p.2700-2702
Main Authors: Gravier, L., Wegrowe, J.-E., Wade, T., Fabian, A., Ansermet, J.-P.
Format: Article
Language:English
Subjects:
Biomembranes
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Current measurement
Exact sciences and technology
Giant magnetoresistance
Magnetic field measurement
Magnetic properties and materials
Magnetic properties of nanostructures
Magnetism
Nanoporous materials
Nonhomogeneous media
Performance evaluation
Physics
Temperature dependence
Thermoelectricity
Wires
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Summary:We introduce here a novel technique specifically designed to measure the thermoelectrical properties of nanoscale ferromagnetic wires, prepared by electrodeposition in nanoporous membranes. The conditions of measurements have been determined through experiments performed on uniform Co and Cu wires made in different kinds of membranes at different temperatures, from 300 K down to 70 K. We then investigated the magnetic field dependence of Co-Cu multilayer nanowires in the current-perpendicular-to-plane geometry: the relation between the giant magnetoresistance and the magnetothermopower demonstrated the efficiency of this experimental technique.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2002.803151