Co2MnSi:Pt multilayers for giant spin Seebeck devices

Christopher Cox; Andrew J. Caruana; Michael D. Cropper; David M. Tatnell; Christy J. Kinane; Timothy R. Charlton; Kelly Morrison

doi:10.1117/12.2271303

8 September 2017 Co₂MnSi:Pt multilayers for giant spin Seebeck devices

Christopher Cox, Andrew J. Caruana, Michael D. Cropper, David M. Tatnell, Christy J. Kinane, Timothy R. Charlton, Kelly Morrison

Author Affiliations +

Proceedings Volume 10357, Spintronics X; 1035731 (2017) https://doi.org/10.1117/12.2271303
Event: SPIE Nanoscience + Engineering, 2017, San Diego, California, United States

Abstract

The spin Seebeck effect (SSE) has been widely studied as a potential mechanism for energy harvesting. However, the efficiency of such devices, utilizing the spin thermoelectric effect in thin film form, has not yet reached a sufficient value to make them economically viable. It is therefore imperative that advances are made to investigate means by which the thermoelectric signal can be enhanced. Multilayers of Co₂MnSi and Pt are fabricated and characterized in an attempt to observe enhanced voltages. We report that bilayers of ferromagnetic conductor/normal metal (FM/NM) exhibit a Longitudinal SSE response and that repetitive stacking of such bilayers results in an increased thermoelectric voltage that is highly dependent upon the quality of CMS/Pt and Pt/CMS interfaces.

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Christopher Cox, Andrew J. Caruana, Michael D. Cropper, David M. Tatnell, Christy J. Kinane, Timothy R. Charlton, and Kelly Morrison "Co₂MnSi:Pt multilayers for giant spin Seebeck devices", Proc. SPIE 10357, Spintronics X, 1035731 (8 September 2017); https://doi.org/10.1117/12.2271303

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