The 81st JSAP Autumn Meeting, 2020

Presentation information

Oral presentation

9 Applied Materials Science » 9.4 Thermoelectric conversion

[8p-Z18-1~16] 9.4 Thermoelectric conversion

Tue. Sep 8, 2020 12:30 PM - 5:15 PM Z18

Mikio Koyano(JAIST), Takahiro Tomita(東大), Takafumi Ishibe(Osaka Univ.)

5:00 PM - 5:15 PM

[8p-Z18-16] Anomalous Nernst Effect in Iron- based sintered alloys

Yasutomo Omori1, Yuma Iwasaki1, Ryohto Sawada1, Sadanori Kuroshima1, Masahiko Ishida1, Akihiro Kirihara1 (1.NEC)

Keywords:Thermoelectric conversion, Magnetic material, Anomalous Nernst Effect

Recently, the Anomalous Nernst Effect (ANE) is attractive as thermoelectric conversion. We have studied the electromotive force of the ANE in iron based sintered alloys. We prepared Fe-Al alloys with different Al concentration by using Spark Plasma Sintering (SPS) technique. The electromotive force of the ANE Syx has dramatically enhanced with increasing the ratio of Al and showed the maximum when the ratio of Al is 25%. Then we prepared Fe75X25 (X=B, Si, Ga) alloys for the comparison between the effects of different doping elements. Furthermore, to find more efficient ANE materials, we have tried to enhance the electromotive force of Fe75Al25 by adding other elements.