TY - JOUR
T1 - Phenomenological analysis of transverse thermoelectric generation and cooling performance in magnetic/thermoelectric hybrid systems
AU - Yamamoto, Kaoru
AU - Iguchi, Ryo
AU - Miura, Asuka
AU - Zhou, Weinan
AU - Sakuraba, Yuya
AU - Miura, Yoshio
AU - Uchida, Ken Ichi
N1 - Funding Information:
This work was supported by CREST “Creation of Innovative Core Technologies for Nano-enabled Thermal Management” (Grant No. JPMJCR17I1) and PRESTO “Scientific Innovation for Energy Harvesting Technology” (Grant No. JPMJPR17R5) from JST, Japan, and Mitou challenge 2050 (Grant No. P14004) from NEDO, Japan. A.M. was supported by JSPS through Research Fellowship for Young Scientists (Grant No. JP18J02115).
Publisher Copyright:
© 2021 Author(s).
PY - 2021/6/14
Y1 - 2021/6/14
N2 - We phenomenologically calculate the performance of the recently observed Seebeck-driven transverse thermoelectric generation (STTG) for various systems in terms of the thermopower, power factor, and figure of merit to demonstrate the usefulness of STTG. The STTG system consists of a closed circuit comprising thermoelectric and magnetic materials which exhibit the Seebeck and anomalous Hall effects, respectively. When a temperature gradient is applied to the hybrid system, the Seebeck effect in the thermoelectric material layer generates a longitudinal charge current in the closed circuit, and the charge current subsequently drives the anomalous Hall effect in the magnetic material layer. The anomalous Hall voltage driven by the Seebeck effect has a similar symmetry to the transverse thermoelectric conversion based on the anomalous Nernst effect. We find that the thermoelectric properties of STTG can be much better than those of the anomalous Nernst effect by increasing the Seebeck coefficient and anomalous Hall angle of the thermoelectric and magnetic materials, respectively, as well as by optimizing their dimensions. We also formulate the electronic cooling performance in the STTG system, thereby confirming the reciprocal relation for the hybrid transverse thermoelectric conversion.
AB - We phenomenologically calculate the performance of the recently observed Seebeck-driven transverse thermoelectric generation (STTG) for various systems in terms of the thermopower, power factor, and figure of merit to demonstrate the usefulness of STTG. The STTG system consists of a closed circuit comprising thermoelectric and magnetic materials which exhibit the Seebeck and anomalous Hall effects, respectively. When a temperature gradient is applied to the hybrid system, the Seebeck effect in the thermoelectric material layer generates a longitudinal charge current in the closed circuit, and the charge current subsequently drives the anomalous Hall effect in the magnetic material layer. The anomalous Hall voltage driven by the Seebeck effect has a similar symmetry to the transverse thermoelectric conversion based on the anomalous Nernst effect. We find that the thermoelectric properties of STTG can be much better than those of the anomalous Nernst effect by increasing the Seebeck coefficient and anomalous Hall angle of the thermoelectric and magnetic materials, respectively, as well as by optimizing their dimensions. We also formulate the electronic cooling performance in the STTG system, thereby confirming the reciprocal relation for the hybrid transverse thermoelectric conversion.
UR - http://www.scopus.com/inward/record.url?scp=85107833379&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85107833379&partnerID=8YFLogxK
U2 - 10.1063/5.0055475
DO - 10.1063/5.0055475
M3 - Article
AN - SCOPUS:85107833379
SN - 0021-8979
VL - 129
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 22
M1 - 223908
ER -