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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…

Two-dimensional van der Waals materials offer a highly tunable platform for generating emergent quantum phenomena through symmetry breaking. Stacking-induced symmetry breaking at interfaces provides an effective method to modulate their…

Mesoscale and Nanoscale Physics · Physics 2025-01-23 Xing-Guo Ye , Zhen-Tao Zhang , Peng-Fei Zhu , Wen-Zheng Xu , An-Qi Wang , Zhi-Min Liao

We study a model for the transverse thermoelectric response due to quantum superconducting fluctuations in a two-leg Josephson ladder, subject to a perpendicular magnetic field B and a transverse temperature gradient. The off-diagonal…

Superconductivity · Physics 2015-06-11 Yeshayahu Atzmon , Efrat Shimshoni

The recent observations of nonlinear Hall effect in time-reversal symmetry protected systems and on the surface of three-dimensional topological insulators due to an in-plane magnetic field have attracted immense experimental and…

Mesoscale and Nanoscale Physics · Physics 2021-12-01 Rajesh K. Malla , Avadh Saxena , Wilton J. M. Kort-Kamp

Spin and valley dependent anomalous Nernst effect are analyzed for monolayer MoS2 and other group-VI dichalcogenides. We find that pure spin and valley currents can be generated perpendicular to the applied thermal gradient in the plane of…

Mesoscale and Nanoscale Physics · Physics 2016-01-19 X. -Q. Yu , Z. -G. Zhu , G. Su , A. -P. Jauho

In materials with spin-momentum locked spin textures, such as Rashba states and topological surface states, the current-induced shift of the Fermi contour in the k space leads to spin polarization, known as the Edelstein effect, which…

Mesoscale and Nanoscale Physics · Physics 2024-12-05 Xing-Guo Ye , Peng-Fei Zhu , Wen-Zheng Xu , Tong-Yang Zhao , Zhi-Min Liao

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

Recent reports of a large anomalous Hall effect (AHE) in ferromagnetic Weyl semimetals (FM WSM) have led to a resurgence of interest in this enigmatic phenomenon. However, due to a lack of tunable materials, the interplay between the…

We introduce the intrinsic nonlinear planar thermal Hall effect (NPTHE)-- a dissipationless thermal response proportional to $(\nabla T)^2B$, which arises when the temperature gradient $\nabla T$ and magnetic field $\mathbf{B}$ lie within…

Materials Science · Physics 2025-11-21 Chanchal K. Barman

In the second-order response regime, the Hall voltage can be nonzero without breaking the time-reversal symmetry, as long as the system is noncentrosymmetric. There are multiple mechanisms with different scaling rules that contribute to the…

Mesoscale and Nanoscale Physics · Physics 2022-04-22 Junxi Duan , Yu Jian , Yang Gao , Huimin Peng , Jinrui Zhong , Qi Feng , Yugui Yao

Electric generation of spin current via spin Hall effect is of great interest as it allows an efficient manipulation of magnetization in spintronic devices. Theoretically, spin current can be also created by a temperature gradient, which is…

A new concept realizing giant spin Nernst effect in nonmagnetic metallic films is introduced. It is based on the idea of engineering an asymmetric energy dependence of the longitudinal and transverse electrical conductivities, as well as a…

Mesoscale and Nanoscale Physics · Physics 2016-05-25 Nguyen H. Long , Phivos Mavropoulos , Bernd Zimmermann , Stefan Blügel , Yuriy Mokrousov

Antiferromagnetic Weyl semimetal Mn$_3$Sn has shown to generate strong intrinsic anomalous Hall effect (AHE) at room temperature, due to large momentum-space Berry curvature from the time-reversal symmetry breaking electronic bands of the…

Mesoscale and Nanoscale Physics · Physics 2019-05-22 P. K. Muduli , T. Higo , T. Nishikawa , D. Qu , H. Isshiki , K. Kondou , D. Nishio-Hamane , S. Nakatsuji , YoshiChika Otani

The intrinsic anomalous Nernst effect in a magnetic material is governed by the Berry curvature at the Fermi energy and can be realized in non-collinear antiferromagnets with vanishing magnetization. Thin films of (001)-oriented Mn$_{3}$NiN…

It is theoretically predicted that the Nernst coefficient is strongly suppressed and the thermal conductance is quantized in the quantum Hall regime of the two-dimensional electron gas. The Nernst effect is the induction of a thermomagnetic…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Hiroaki Nakamura , Naomichi Hatano , Ryoen Shirasaki

Within the semiclassical Boltzmann transport theory, the formula for Seebeck coefficient $S$ is derived for an isotropic two-dimensional electron gas (2DEG) system that exhibits anomalous Hall effect (AHE) and anomalous Nernst effect (ANE)…

Mesoscale and Nanoscale Physics · Physics 2014-02-05 Yo Pierre Mizuta , Fumiyuki Ishii

We report a detailed investigation of the Ni$_{2}$MnGa shape memory alloy through magnetic, electronic, and thermal measurements. Our measurements of the anomalous Nernst effect (ANE) reveal that this technique is very sensitive to the…

Strongly Correlated Electrons · Physics 2021-01-13 Avirup De , Anupam K. Singh , Sanjay Singh , Sunil Nair

Berry curvature in Weyl semimetals results in very intriguing magneto-electric and magneto-thermal transport properties. In this paper, we explore the impact of the tilting of the Weyl nodes, which breaks the time-reversal symmetry, on the…

Mesoscale and Nanoscale Physics · Physics 2019-02-13 Kamal Das , Amit Agarwal

Recent studies suggest that the nonlinear transport properties in Weyl semimetal may be a measurable consequence of its chiral anomaly. Nonlinear responses in transport are estimated to be substantial, because in real materials such as TaAs…

Mesoscale and Nanoscale Physics · Physics 2023-05-16 Min Ju Park , Suik Cheon , Hyun-Woo Lee

Detecting the orientation of the N\'eel vector is a major research topic in antiferromagnetic spintronics. Here we recognize the intrinsic nonlinear Hall effect, which is independent of the relaxation time, as a prominent contribution to…

Mesoscale and Nanoscale Physics · Physics 2022-01-05 Chong Wang , Yang Gao , Di Xiao