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Antibonding ground state of adatom molecules in bulk Dirac semimetals

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Author(s):
Marques, Y. ; Obispo, A. E. ; Ricco, L. S. ; de Souza, M. ; Shelykh, I. A. ; Seridonio, A. C.
Total Authors: 6
Document type: Journal article
Source: PHYSICAL REVIEW B; v. 96, n. 4, p. 5-pg., 2017-07-11.
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. (AU)

FAPESP's process: 15/23539-8 - A novel manner of qubit storage: vacuum fluctuations and BICs of Majoranas assisted by a non-trivial Kondo effect
Grantee:Luciano Henrique Siliano Ricco
Support Opportunities: Scholarships in Brazil - Doctorate