Lorentz Covariance of Dirac Electrons in Solids: Dielectric and Diamagnetic Properties

Hideaki Maebashi, Masao Ogata, Hidetoshi Fukuyama

Published 2017-05-18Version 1

We study electrodynamics of Dirac electrons in solids, e.g. bismuth, by comparing with quantum electrodynamics (QED). It is shown that Lorentz covariance associated with the Dirac electrons makes a remarkable correlation between dielectric and diamagnetic properties, leading to a large enhancement of the permittivity directly linked to the well-known phenomenon of large diamagnetism.