Journal
APPLIED PHYSICS LETTERS
Volume 104, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4867700
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Funding
- DFG [SPP 1538]
- EMRP JRP EXL04 SpinCal
- EMRP participating countries within EURAMET
- EU
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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 mu V/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. (C) 2014 AIP Publishing LLC.
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