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The transverse thermoelectric effect refers to the conversion of a temperature gradient into a transverse charge current, or vice versa, which appears in a conductor under a magnetic field or in a magnetic material with spontaneous…

Materials Science · Physics 2021-04-12 Ken-ichi Uchida , Weinan Zhou , Yuya Sakuraba

Topological Kagome magnets, characterized by nontrivial electronic band structures featuring flat band, Dirac cone and van Hove singularities, provide a new avenue for the realization of thermoelectric devices. Unlike the conventional…

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…

Materials Science · Physics 2021-07-06 Kaoru Yamamoto , Ryo Iguchi , Asuka Miura , Weinan Zhou , Yuya Sakuraba , Yoshio Miura , Ken-ichi Uchida

The global shift towards a carbon-neutral society has accelerated the demand for green energy, driving research into efficient technologies for harvesting energy from low-grade waste heat. Recently, transverse thermoelectrics based on the…

Analogous to the Hall effect, the Nernst effect is the generation of a transverse voltage due to a temperature gradient in the presence of a perpendicular magnetic field. The Nernst effect has promise for thermoelectric applications and as…

Strongly Correlated Electrons · Physics 2021-04-20 T. Asaba , V. Ivanov , S. M. Thomas , S. Y. Savrasov , J. D. Thompson , E. D. Bauer , F. Ronning

The Nernst thermopower usually is considered far too weak in most metals for waste heat recovery. However, its transverse orientation gives it an advantage over the Seebeck effect on non-flat surfaces. Here, we experimentally demonstrate…

Transverse thermoelectric conversion holds significant potential in addressing complex challenges faced by classical Seebeck/Peltier modules. A promising transverse thermoelectric phenomenon is the anomalous Nernst effect (ANE) originating…

Materials Science · Physics 2024-11-25 Takamasa Hirai , Fuyuki Ando , Hossein Sepehri-Amin , Ken-ichi Uchida

The transverse thermoelectric effect enables simpler, more flexible thermoelectric devices by generating electricity perpendicular to heat flow, offering promising solutions for waste heat recovery and solid-state cooling applications.…

Strongly Correlated Electrons · Physics 2025-08-12 Yazhou Li , Jiaxing Liao , Jiajun Ma , Yuwei Zhang , Tao Li , Jialu Wang , Hangdong Wang , Hanjie Guo , Jianhui Dai , Yuke Li

Permanent magnets are used in various products and essential for human society. If omnipresent permanent magnets could directly convert heat into electricity, they would lead to innovative energy harvesting and thermal management…

The Nernst effect, the generation of a transverse electric voltage in the presence of longitudinal thermal gradient, has garnered significant attention in the realm of magnetic topological materials due to its superior potential for…

Materials Science · Physics 2025-04-23 Olajumoke Oluwatobiloba Emmanuel , Shuvankar Gupta , Xianglin Ke

Thermoelectrics (TEs) are solid-state devices that can realize heat-electricity conversion. Transverse TEs require materials with a large Nernst effect, which typically requires a strong applied magnetic field. However, topological…

Materials Science · Physics 2025-07-08 Jiamin Wen , Kaustuv Manna , Dung Vu , Subhadeep Bej , Yu Pan , Claudia Felser , Brian Skinner , Joseph P. Heremans

The Seebeck-driven transverse thermoelectric generation in magnetic/thermoelectric hybrid materials (STTG) has been investigated in all-bulk hybrid materials. The transverse thermopower in a ferromagnetic Co$_2$MnGa/thermoelectric $n$-type…

Materials Science · Physics 2023-02-09 Weinan Zhou , Asuka Miura , Takamasa Hirai , Yuya Sakuraba , Ken-ichi Uchida

The non-uniform current distribution arisen from either current crowding effect or hot spot effect provides a method to tailor the interaction between thermal gradient and electron transport in magnetically ordered systems. Here we apply…

Mesoscale and Nanoscale Physics · Physics 2024-09-17 Jiuming Liu , Bin Rong , Hua Bai , Xinqi Liu , Yanghui Liu , Yifan Zhang , Yujie Xiao , Yuzhen Liang , Qi Yao , Liyang Liao , Yumeng Yang , Cheng Song , Xufeng Kou

Thermoelectric modules are a promising approach to energy harvesting and efficient cooling. In addition to the longitudinal Seebeck effect, recently transverse devices utilizing the anomalous Nernst effect (ANE) have attracted interest. For…

In this article, we show fundamentals and recent advances on the transverse thermoelectric generation, in which a thermopower is generated in the direction perpendicular to an applied temperature gradient. Transverse thermoelectric…

Materials Science · Physics 2022-10-26 Ken-ichi Uchida , Joseph P. Heremans

Temperature gradient in a ferromagnetic conductor may generate a spontaneous transverse voltage drop in the direction perpendicular to both magnetization and heat current. This anomalous Nernst effect (ANE) has been considered to be…

The discovery of topological materials has provided new opportunities to exploit advanced materials for heat-to-electricity energy conversion as they share many common characteristics with thermoelectric materials. In this work, we report…

Ferromagnetic metallic oxides have potential applications in spincaloric devices which utilize the spin property of charge carriers for interconversion of heat and electricity through the spin Seebeck or the anomalous Nernst effect or both.…

Materials Science · Physics 2021-07-27 M. Manikandan , A. Ghosh , R. Mahendiran

Transverse thermoelectric devices produce electric fields perpendicular to an incident heat flux. Classically, this process is driven by the Nernst effect in bulk solids, wherein a magnetic field generates a Lorentz force on thermally…

Materials Science · Physics 2017-01-04 Stephen R. Boona , Koen Vandaele , Isabel N. Boona , David W. McComb , Joseph P. Heremans

The anomalous Nernst effect (ANE) is a thermomagnetic phenomenon with potential applications in thermal energy harvesting. While many recent works studied the approaches to increase the ANE coefficient of materials, relatively little effort…

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