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On the separation of Hall and Ohmic nonlinear responses
Stepan S. Tsirkin, Ivo Souza
The symmetric and antisymmetric parts of the linear conductivity describe the dissipative (Ohmic) and nondissipative (Hall) parts of the current. The Hall current is always transve…
Signatures of Weyl fermion annihilation in a correlated kagome magnet
Ilya Belopolski, Tyler A. Cochran, Xiaoxiong Liu +22
The manipulation of topological states in quantum matter is an essential pursuit of fundamental physics and next-generation quantum technology. Here we report the magnetic manipula…
Giant Crystal Hall Effect in Collinear Antiferromagnetic -FeMn
Lei Wang, Ka Shen, Tai Min +1
The spontaneous Hall effect is usually governed by three conventional mechanisms, such as the Berry curvature, skew scattering and side jump, which widely exist in ferromagnetic or…
Flat bands with fragile topology through superlattice engineering on single-layer graphene
Anastasiia Skurativska, Stepan S. Tsirkin, Fabian D Natterer +2
'Magic'-angle twisted bilayer graphene has received a lot of interest due to its flat bands with potentially non-trivial topology that lead to intricate correlated phases. A spectr…
Putative helimagnetic phase in the kagome metal Co_3Sn_2-xIn_xS_2
Z. Guguchia, H. Zhou, C. N. Wang +12
The exploration of topological electronic phases that result from strong electronic correlations is a frontier in condensed matter physics. One class of systems that is currently e…
Intriguing magnetism of the topological kagome magnet TbMn_6Sn_6
C. Mielke, W. Ma, V. Pomjakushin +24
Magnetic topological phases of quantum matter are an emerging frontier in physics and material science. Along these lines, several kagome magnets have appeared as the most promisin…