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We analyze the effect of the tilt on the transverse thermoelectric coefficient of Weyl semimetals in the \emph{conformal} limit, i.e., zero temperature and zero chemical potential. Using the Kubo formalism, we find a nonmonotonic behavior…

Mesoscale and Nanoscale Physics · Physics 2023-01-18 Thorvald M. Ballestad , Alberto Cortijo , María A. H. Vozmediano , Alireza Qaiumzadeh

The thermoelectric Nernst effect of solids converts heat flow to beneficial electronic voltages. Here, using a correlated topological semimetal with high carrier mobility $\mu$ in presence of magnetic fluctuations, we demonstrate an…

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…

Weyl semimetals host linear energy dispersions around Weyl nodes, as well as monopoles of Berry curvature in momentum space around these points. These features give rise to unique transport signatures in a Weyl semimetal, such as transverse…

Mesoscale and Nanoscale Physics · Physics 2019-06-19 Robert C. McKay , Timothy M. McCormick , Nandini Trivedi

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 anomalous Nernst effect (ANE), a thermoelectric phenomenon in magnetic materials, has potential for novel energy harvesting applications because its orthogonal relationship between the temperature gradient and the electric field enables…

Materials Science · Physics 2019-11-15 Y. Sakuraba , K. Hyodo , A. Sakuma , S. Mitani

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…

We study the anomalous Nernst and thermal Hall effects in a linearized low-energy model of a tilted Weyl semimetal, with two Weyl nodes separated in momentum space. For inversion symmetric tilt, we give analytic expressions in two opposite…

Mesoscale and Nanoscale Physics · Physics 2017-11-22 Yago Ferreiros , A. A. Zyuzin , Jens H. Bardarson

Today solid-state cooling technologies below liquid nitrogen boiling temperature (77 K), crucial to quantum information technology and probing quantum state of matter, are greatly limited due to the lack of good thermoelectric and/or…

Materials Science · Physics 2022-12-28 Peng Li , Pengfei Qiu , Qing Xu , Jun Luo , Yifei Xiong , Jie Xiao , Niraj Aryal , Qiang Li , Lidong Chen , Xun Shi

We demonstrate that a novel device design, where a shape-engineered tilted-leg thermopile structure is employed, significantly enhances the output voltage in the transverse direction. Owing to the shape engineering of the leg geometry, an…

Applied Physics · Physics 2024-01-23 Ki Mun Bang , Sang J. Park , Hyun Yu , Hyungyu Jin

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…

In this work we report Nernst effect measurements in single crystal bismuth samples, with special emphasis on the characterization of the Nernst coefficient when the magnetic field, heat current and generated voltage are aligned along…

Materials Science · Physics 2025-01-30 Alessandro Sola , Elena Sonia Olivetti , Adriano Di Pietro , Luca Martino , Vittorio Basso

The discovery of two-dimensional van der Waals (vdW) magnetic materials has propelled advancements in technological devices. The Nernst effect, which generates a transverse electric voltage in the presence of a longitudinal thermal…

Anomalous Nernst effect (ANE), a widely investigated transverse thermoelectric effect that converts waste heat into electrical energy with remarkable flexibility and integration capability, has been extended to antiferromagnets with…

The search for materials with large thermopower is of great practical interest. Dirac and Weyl semimetals have recently proven to exhibit superior thermoelectric properties, particularly when subjected to a quantizing magnetic field. Here…

Materials Science · Physics 2024-06-24 Poulomi Chakraborty , Aaron Hui , Grigory Bednik , Brian Skinner

Generation of electric power by the Nernst effect is a new application of a semiconductor. A key point of this proposal is to find materials with a high thermomagnetic figure-of-merit, which are called Nernst elements. In order to find…

Materials Science · Physics 2007-05-23 Hiroaki Nakamura , Kazuaki Ikeda , Satarou Yamaguchi

The Nernst and Seebeck effects are crucial for thermoelectric energy harvesting. However, the linear anomalous Nernst effect requires magnetic materials with intrinsically broken time-reversal symmetry. In non-magnetic systems, the dominant…

Mesoscale and Nanoscale Physics · Physics 2025-09-17 Harsh Varshney , Amit Agarwal

A large anomalous Nernst effect is essential for thermoelectric energy harvesting in the transverse geometry without external magnetic field. It is often connected with anomalous Hall effect, especially when electronic Berry curvature is…

We consider the consequence of having nonreciprocal photon transfer between two surfaces with temperature gradient. We demonstrate that in a system consisting of graphene and a magneto-optical substrate separated by a gap, a transverse…

Optics · Physics 2025-11-26 Alireza Kalantari Dehaghi , Linxiao Zhu

A novel process of spin conversion from a temperature gradient to a transverse voltage is addressed in this paper, viz. the anomalous Nernst effect (ANE) in a ferromagnetic metal. We report that an additional voltage is superposed on the…

Materials Science · Physics 2018-04-12 M. Mizuguchi , K. Hasegawa , J. Ohe , M. Tsujikawa , M. Shirai , K. Takanashi