Antibonding ground state of adatom molecules in bulk Dirac semimetals

Y. Marques, A. E. Obispo, L. S. Ricco, M. de Souza, Ivan Shelykh, A. C Seridonio

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The ground state of the diatomic molecules in nature is inevitably bonding, and its first excited state is antibonding. We demonstrate theoretically that, for a pair of distant adatoms placed buried in three-dimensional-Dirac semimetals, this natural order of the states can be reversed and an antibonding ground state occurs at the lowest energy of the so-called bound states in the continuum. We propose an experimental protocol with the use of a scanning tunneling microscope tip to visualize the topographic map of the local density of states on the surface of the system to reveal the emerging physics.
Original languageEnglish
Number of pages41112
JournalPhysical Review B
Volume96
Issue number4
DOIs
Publication statusPublished - 11 Jul 2017

Other keywords

  • Semimetals
  • Dirac semimetal
  • Anderson impurity model
  • Green's function methods
  • Condensed Matter & Materials Physics
  • Málmungar
  • Þéttefnisfræði

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