Magnetothermoelectric figure of merit of Co/Cu multilayers

Hu XK, Krzysteczko P, Liebing N, Serrano-Guisan S, Rott K, Reiss G, Kimling J, Boehnert T, Nielsch K, Schumacher HW (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Applied Physics Letters American Institute of Physics (AIP)

Book Volume: 104

Article Number: 092411

Journal Issue: 9

DOI: 10.1063/1.4867700

Abstract

The switching of the magnetic configuration of giant magnetoresistance multilayers not only changes the electrical and thermal conductivities but also the thermopower. We study the magnetotransport and the magnetothermoelectric properties of Co/Cu multilayer devices in a lateral thermal gradient. The Seebeck coefficient reaches values up to -18 μV/K at room temperature and shows a magnetic field dependence up to 28.6% upon spin reversal. In combination with thermal conductivity data of the same Co/Cu stack, we find a magnetothermoelectric figure of merit of up to 65%. Furthermore, a magneto-power factor of up to 110% is derived. © 2014 AIP Publishing LLC.

Involved external institutions

Universität Bielefeld DE Germany (DE) Universität Hamburg (UHH) DE Germany (DE) Physikalisch-Technische Bundesanstalt (PTB) DE Germany (DE) INL - International Iberian Nanotechnology Laboratory PT Portugal (PT)

How to cite

APA:

Hu, X.K., Krzysteczko, P., Liebing, N., Serrano-Guisan, S., Rott, K., Reiss, G.,... Schumacher, H.W. (2014). Magnetothermoelectric figure of merit of Co/Cu multilayers. Applied Physics Letters, 104(9). https://dx.doi.org/10.1063/1.4867700

MLA:

Hu, X. K., et al. "Magnetothermoelectric figure of merit of Co/Cu multilayers." Applied Physics Letters 104.9 (2014).

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