Antibonding Ground state of Adatom Molecules in Bulk Dirac Semimetals
Strongly Correlated Electrons
2017-07-19 v2
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.
Keywords
Cite
@article{arxiv.1705.09216,
title = {Antibonding Ground state of Adatom Molecules in Bulk Dirac Semimetals},
author = {Y. Marques and A. E. Obispo and L. S. Ricco and M. de Souza and I. A. Shelykh and A. C. Seridonio},
journal= {arXiv preprint arXiv:1705.09216},
year = {2017}
}