Dirac points of electron energy spectrum, band-contact lines, and electron topological transitions of 3 1/2 kind in three-dimensional metals

Abstract

In many of three-dimensional metals with the inversion symmetry and a weak spin-orbit interaction, Dirac points of the electron energy spectrum form band-contact lines in the Brillouin zones of these crystals, and electron topological transitions of 3 1/2 kind are due to certain points of these lines. We theoretically study these transitions in detail, and point out that they can be detected with the magnetic susceptibility which exhibits a giant diamagnetic anomaly at the 3 1/2 -order transitions.

5 pages, 3 figures

References in corpus (5)

• The electronic properties of graphene
• Quantum interference and Aharonov-Bohm oscillations in topological insulators
• Band-Contact Lines in Electron Energy Spectrum of Graphite
• Electron energy spectrum and the Berry phase in graphite bilayer
• Fermi surface reconstruction in (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ (0.44 $\le x\le$ 1) probed by thermoelectric power measurements

Cited by in corpus (3)

• Magnetic susceptibility of topological nodal semimetals
• Quantum high-frequency conductivity oscillations in graphene multilayers and nodal semimetals in a tilted magnetic field
• Magnetic susceptibility of crystals with crossing of their band-contact lines