Results 71 to 80 of about 53,971 (223)

Anomalous thermal Hall effect and anomalous Nernst effect of CsV$_{3}$Sb$_{5}$

, 2021
Motived by time-reversal symmetry breaking and giant anomalous Hall effect in kagome superconductor \textit{A}V$_3$Sb$_5$ (\textit{A} = Cs, K, Rb), we carried out the thermal transport measurements on CsV$_3$Sb$_5$. In addition to the anomalous Hall effect, the anomalous Nernst effect and the anomalous thermal Hall effect emerge.
Zhou, Xuebo, Liu, Hongxiong, Wu, Wei, Jiang, Kun, Shi, Youguo, Li, Zheng, Sui, Yu, Hu, Jiangping, Luo, Jianlin   +8 more
openaire   +2 more sources

Large Room Temperature Anomalous Nernst Effect Coupled with Topological Nernst Effect from Incommensurate Spin Structure in a Kagome Antiferromagnet

Advanced Science, EarlyView.
This study demonstrates that ErMn₆Sn₆, a kagome antiferromagnet hosting incommensurate spin textures, sustains finite scalar spin chirality that drives topological states. The anomalous Nernst effect (ANE) originates from the strong Berry curvature of Chern‐gapped Dirac fermions, while the topological Nernst effect (TNE) arises from emergent fields ...
Jiajun Ma, Jiaxing Liao, Yazhou Li, Yuwei Zhang, Jialu Wang, Jinke Bao, Yan Sun, Shuang Jia, Yuke Li   +8 more
wiley   +1 more source

Polycrystalline MnBi as a transverse thermoelectric material

AIP Advances, 2023
To assess the potential of polycrystalline MnBi as a transverse thermoelectric material, we have experimentally investigated its anomalous Nernst effect (ANE) by means of the heat flux method. We prepared MnBi samples by powder metallurgy; this technique
A. Sola, E. S. Olivetti, L. Martino, V. Basso   +3 more
doaj   +1 more source

Mott Relation for Anomalous Hall and Nernst effects in Ga1-xMnxAs Ferromagnetic Semiconductors

, 2008
The Mott relation between the electrical and thermoelectric transport coefficients normally holds for phenomena involving scattering. However, the anomalous Hall effect (AHE) in ferromagnets may arise from intrinsic spin-orbit interaction.
Daichi Chiba, Fumihiro Matsukura, Hideo Ohno, Jing Shi, N. F. Mott, Yong Pu   +5 more
core   +1 more source

Emerging of Anomalous Higher‐Order Topological Phases in Altermagnet/Topological Insulator Heterostructure by Floquet Engineering

Advanced Science, EarlyView.
We combine altermagnet with topological insulators and subject the structure to Floquet driving. This breaks time‐reversal symmetry and creates a new type of higher‐order topological insulator. Its key feature is the emergence of programmable “0/π‐corner modes” that can be controlled by magnetic field direction, offering a novel dynamic platform for ...
Donghao Wang, Arnob Kumar Ghosh, Yongchun Tao, Fusheng Ma, Cheng Song   +4 more
wiley   +1 more source

Magneto-optical design of anomalous Nernst thermopile

Scientific Reports, 2021
The introduction of spin caloritronics into thermoelectric conversion has paved a new path for versatile energy harvesting and heat sensing technologies.
Jian Wang, Asuka Miura, Rajkumar Modak, Yukiko K. Takahashi, Ken-ichi Uchida   +4 more
doaj   +1 more source

Ambipolar Nernst effect in NbSe$_2$

, 2003
The first study of Nernst effect in NbSe$_2$ reveals a large quasi-particle contribution with a magnitude comparable and a sign opposite to the vortex signal. Comparing the effect of the Charge Density Wave(CDW) transition on Hall and Nernst coefficients,
D. J. Huntley, E. H. Sondheimer, H. N. S. Lee, Helmuth Berger, Kamran Behnia, Romain Bel   +5 more
core   +1 more source

Seebeck Effect in Nanoscale Ferromagnets [PDF]

, 2017
We present a theory of the Seebeck effect in nanoscale ferromagnets with dimensions smaller than the spin diffusion length. The spin accumulation generated by a temperature gradient strongly affects the thermopower.
Bauer, Gerrit E. W., Fedorov, Dmitry V., Gradhand, Martin, Mertig, Ingrid, Tauber, Katarina   +4 more
core   +6 more sources

Nonreciprocal Charge Transport in an Iron‐Based Superconductor with Broken Inversion Symmetry Engineered by a Hydrogen‐Concentration Gradient

Advanced Science, EarlyView.
Concentration gradients can serve as a universal platform for breaking spatial inversion symmetry. We demonstrate this concept by observing nonreciprocal electrical transport—a sensitive probe of inversion‐symmetry breaking—in the iron‐based superconductor Sm1111 with an engineered hydrogen gradient.
Takayuki Nagai, Yukito Nishio, Jumpei Matsumoto, Kota Hanzawa, Hidenori Hiramatsu, Hideo Hosono, Tsuyoshi Kimura   +6 more
wiley   +1 more source

Geometrical contribution to the anomalous Nernst effect in TbFeCo thin films

AIP Advances, 2018
The geometrical contribution to the anomalous Nernst effect in magnetic thin films was experimentally investigated by varying the aspect ratios and electrode configurations.
Ryo Ando, Takashi Komine
doaj   +1 more source