Magneto-thermal transport indicating enhanced Nernst response in FeCo/IrMn exchange coupled stacks

Martini M, Reichlova H, Lee Y, Dusikova D, Zemen J, Nielsch K, Thomas A (2022)


Publication Type: Journal article

Publication year: 2022

Journal

Book Volume: 121

Article Number: 212405

Journal Issue: 21

DOI: 10.1063/5.0113485

Abstract

We present an analysis of magneto-thermal transport data in IrMn/FeCo bilayers based on the Mott relation and report an enhancement of the Nernst response in the vicinity of the blocking temperature. We measure all four transport coefficients of the longitudinal resistivity, anomalous Hall resistivity, Seebeck effect, and anomalous Nernst effect, and we show a deviation arising around the blocking temperature between the measured Nernst coefficient and the one calculated using the Mott rule. We attribute this discrepancy to spin fluctuations at the antiferromagnet/ferromagnet interface near the blocking temperature. The latter is estimated by magnetometry and magneto-transport measurements.

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How to cite

APA:

Martini, M., Reichlova, H., Lee, Y., Dusikova, D., Zemen, J., Nielsch, K., & Thomas, A. (2022). Magneto-thermal transport indicating enhanced Nernst response in FeCo/IrMn exchange coupled stacks. Applied Physics Letters, 121(21). https://doi.org/10.1063/5.0113485

MLA:

Martini, Mickey, et al. "Magneto-thermal transport indicating enhanced Nernst response in FeCo/IrMn exchange coupled stacks." Applied Physics Letters 121.21 (2022).

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