講演情報
[8a-N304-1]Giant Enhancement of the Anomalous Nernst Coefficient in Co1-xPtx Thin Films
〇(PC)Mojtaba Mohammadi1, Satoshi Sumi1, Hiroyuki Awano1, Kenji Tanabe1 (1.Spintronics Laboratory, Toyota Technological Institute, Nagoya 468-8511, Japan)
キーワード：
Anomalous Nernst Effect (ANE)、Thermoelectric Properties、CoPt Thin Films
The unique transverse geometry of the anomalous Nernst effect (ANE) offers distinct advantages over the conventional longitudinal Seebeck effect in converting waste heat into electricity. In this study, we focus on the thermoelectric properties of Co1-xPtx thin films with a thickness of 20 nm, systematically varying the Pt content from 0 to 95 at.%. Through comprehensive measurements, we characterized the electrical and thermoelectric properties of these samples. Our results showed a systematic increase in SANE with increasing Pt content, reaching a peak at around x=50% before experiencing a decline at higher concentrations. Notably, the SANE magnitude exhibited a significant enhancement, increasing from 0.33 µV/K for the Pt-free sample to around 3.2 µV/K at x=50%.