Nexus and Dirac lines in topological materials

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Researchers

Research units

  • University of Jyväskylä
  • Landau Institute for Theoretical Physics RAS

Abstract

We consider the Z2 topology of the Dirac lines, i.e., lines of band contacts, on an example of graphite. Four lines—three with topological charge ${N}_{1}=1$ each and one with ${N}_{1}=-1$—merge together near the H-point and annihilate due to summation law $1+1+1-1=0$. The merging point is similar to the real-space nexus, an analog of the Dirac monopole at which the Z2 strings terminate.

Details

Original languageEnglish
Article number093019
Pages (from-to)1-7
JournalNew Journal of Physics
Volume17
Issue numberSeptember 2015
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

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