Topological kagome magnets and superconductors

JX Yin, B Lian, MZ Hasan - Nature, 2022‏ - nature.com
A kagome lattice naturally features Dirac fermions, flat bands and van Hove singularities in
its electronic structure. The Dirac fermions encode topology, flat bands favour correlated …

Anomalous hall antiferromagnets

L Šmejkal, AH MacDonald, J Sinova… - Nature Reviews …, 2022‏ - nature.com
The Hall effect, in which a current flows perpendicular to an electrical bias, has been
prominent in the history of condensed matter physics. Appearing variously in classical …

Crystal Thermal Transport in Altermagnetic

X Zhou, W Feng, RW Zhang, L Šmejkal, J Sinova… - Physical review …, 2024‏ - APS
We demonstrate the emergence of a pronounced thermal transport in the recently
discovered class of magnetic materials—altermagnets. From symmetry arguments and first …

Giant anomalous Nernst signal in the antiferromagnet YbMnBi2

Y Pan, C Le, B He, SJ Watzman, M Yao, J Gooth… - Nature materials, 2022‏ - nature.com
A large anomalous Nernst effect (ANE) is crucial for thermoelectric energy conversion
applications because the associated unique transverse geometry facilitates module …

Anomalous transport due to Weyl fermions in the chiral antiferromagnets Mn3X, X = Sn, Ge

T Chen, T Tomita, S Minami, M Fu, T Koretsune… - Nature …, 2021‏ - nature.com
The recent discoveries of strikingly large zero-field Hall and Nernst effects in
antiferromagnets Mn3 X (X= Sn, Ge) have brought the study of magnetic topological states to …

Topological magnets: functions based on Berry phase and multipoles

S Nakatsuji, R Arita - Annual Review of Condensed Matter …, 2022‏ - annualreviews.org
Macroscopic responses of magnets are often governed by magnetization and, thus, have
been restricted to ferromagnets. However, such responses are strikingly large in the newly …

Colossal anomalous Nernst effect in a correlated noncentrosymmetric kagome ferromagnet

T Asaba, V Ivanov, SM Thomas, SY Savrasov… - Science …, 2021‏ - science.org
The transverse voltage generated by a temperature gradient in a perpendicularly applied
magnetic field, termed the Nernst effect, has promise for thermoelectric applications and for …

Topological charge-entropy scaling in kagome Chern magnet TbMn6Sn6

X Xu, JX Yin, W Ma, HJ Tien, XB Qiang… - Nature …, 2022‏ - nature.com
In ordinary materials, electrons conduct both electricity and heat, where their charge-entropy
relations observe the Mott formula and the Wiedemann-Franz law. In topological quantum …

Exchange-biased topological transverse thermoelectric effects in a Kagome ferrimagnet

H Zhang, J Koo, C Xu, M Sretenovic, B Yan… - Nature …, 2022‏ - nature.com
Abstract Kagome metal TbMn6Sn6 was recently discovered to be a ferrimagnetic topological
Dirac material by scanning tunneling microscopy/spectroscopy measurements. Here, we …

First-principles calculations for topological quantum materials

J **ao, B Yan - Nature reviews physics, 2021‏ - nature.com
Discoveries of topological states and topological materials have reshaped our
understanding of physics and materials over the past 15 years. First-principles calculations …