Nexus and Dirac lines in topological materials

Research output: Contribution to journalArticleScientificpeer-review


Research units

  • University of Jyväskylä
  • Landau Institute for Theoretical Physics RAS


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.


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

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