The majority of first several sections in this article surveys some work done in papers of Chern-Moser [3], Huang-Zhang [14], Huang-Zaitsev [13]. Here, we give a simple and more accessible account on the Chern-Moser-Weyl tensor. We also make an immediate application of the monotonicity...
We propose a spin Hall effect (SHE) enhancement mechanism due to Kramers-Weyl point (KWP) alignment in chiral topological semimetals with high Chern numbers. Through model Hamiltonian calculations, we identify enhancements in the intrinsic spin Hall conductivity (SHC) and the spin Hall angle (SHA)...
Chern Number and Weyl SemimetalsXiaoChang, DNiu, M.CBernevig, QHughes, B ATopological, T LInsulators, TopologicalXu, GWeng, HWang, Z
Huang, X., Zhang, Y.: Monotonicity for the Chern-Moser-Weyl curvature tensor and CR embeddings. Science in China, Ser. A 52, (12) 2617-2627, (2009).Huang, X., Zhang, Y.: Monotonicity for the Chern-Moser-Weyl curvature tensor and CR embeddings. Sci. China Ser. A 52(12), 2617-...
We find that time-likeChern-Simons term can exist in non-equilibrium conditions. We observe thatthere does not exist any chiral-magnetic effect in equilibrium and anomalousHall effect replaces it.Omid, HamidPhysicsH. Omid, "Chern-Simons terms in the 3D Weyl semi-metals," may 2014....
We derive the Chern numbers under magnetic field using topological analysis. We get the magnetic field and Fermi energy dependence of the Hall conductivity according to the correspondence between the Chern number and Hall conductivity in a Weyl semimetal slab with the periodic boundary condition from ...
The existence of the Pontryagin and Euler forms in a Weyl–Cartan space on the basis of the variational method with Lagrange multipliers are established. It is proved that these forms can be expressed via the exterior derivatives of the corresponding Chern–Simons terms in a Weyl–Cartan space ...
A. H. Chamseddine and J. Frhlich, Two-dimensional lorentz-weyl anomaly and gravitational chern-simons theory, Comm. Math. Phys. 147 (1992), no. 3 549-562.Two-dimensional Lorentz-Weyl anomaly and gravitational Chern-Simons theory - Chamseddine, Fr枚hlich - 1992 () Citation Context ......
We propose a spin Hall effect (SHE) enhancement mechanism due to Kramers-Weyl point (KWP) alignment in chiral topological semimetals with high Chern numbers. Through model Hamiltonian calculations, we identify enhancements in the intrinsic spin Hall conductivity (SHC) and the spin Hall angle (SHA)...
The section entanglement Chern number serves as an interpolation of the Z2 invariants defined on time-reversal invariant planes. We find that the change of the section entanglement Chern number protects the Weyl point of the entanglement Hamiltonian, and the parity of the number of Weyl points ...