Hernangomez-Perez, Daniel and Donarini, Andrea and Refaely-Abramson, Sivan (2023) Charge quenching at defect states in transition metal dichalcogenide-graphene van der Waals heterobilayers. PHYSICAL REVIEW B, 107 (7): 075419. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
We study the dynamical properties of pointlike defects, represented by monoatomic chalcogen vacancies, in WS2-graphene and MoS2-graphene heterobilayers. Employing a multidisciplinary approach based on the combination of ab initio, model Hamiltonian and density matrix techniques, we propose a minimal interacting model that allows for the calculation of electronic transition times associated to population and depopulation of the vacancy by an additional electron. We obtain the "coarse-grained" semiclassical dynamics by means of a quantum master equation approach and discuss the potential role of virtual charge fluctuations in the internal dynamics of impurity quasidegenerate states. The interplay between the symmetry of the lattice and the spin degree of freedom through the spin-orbit interaction and its impact on charge quenching is studied in detail.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM; DISULFIDE; TRANSPORT; DYNAMICS; EXCITONS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 13 Mar 2024 14:37 |
| Last Modified: | 13 Mar 2024 14:37 |
| URI: | https://pred.uni-regensburg.de/id/eprint/59985 |
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