Published March 2018 | Version v1
Journal article

A practical guide to Green's functions for the Kubo formula. Part 4

  • 1. University of Electro-Communications, Graduate School of Information Science and Technology, Chofu, Tokyo (Japan)
  • 2. Tokyo University of Science, Tokyo (Japan)

Description

This is the fourth article of a course on the Kubo formula and Green's function method. This fourth article is devoted for the Hall effect in a weak magnetic field. First, a gauge-invariant expression of the Hall conductivity is derived based on the Kubo formula and Green's function for the nearly free electron systems. Second, a Hall conductivity for Bloch electrons is given with a help of Feynman diagram technique. Third, a Hall conductivity for gapless Dirac electrons (Weyl electrons) is obtained by taking into account the interband effect of a magnetic field. (author)

Additional details

Publishing Information

Journal Title
Kotai Butsuri
Journal Volume
53
Journal Issue
3
Journal Page Range
p. 113-132
ISSN
0454-4544

Optional Information

Notes
23 refs., 12 figs.