Garcia Russi, L.F.; Mikhailov, I.D.; Escorcia Caballero, R.A.; Sierra Ortega, J.; Escorcia Salas, G.E. Stark Effect for Donors in Rolled-Up Quantum Well. Micromachines2023, 14, 1290.
Garcia Russi, L.F.; Mikhailov, I.D.; Escorcia Caballero, R.A.; Sierra Ortega, J.; Escorcia Salas, G.E. Stark Effect for Donors in Rolled-Up Quantum Well. Micromachines 2023, 14, 1290.
Garcia Russi, L.F.; Mikhailov, I.D.; Escorcia Caballero, R.A.; Sierra Ortega, J.; Escorcia Salas, G.E. Stark Effect for Donors in Rolled-Up Quantum Well. Micromachines2023, 14, 1290.
Garcia Russi, L.F.; Mikhailov, I.D.; Escorcia Caballero, R.A.; Sierra Ortega, J.; Escorcia Salas, G.E. Stark Effect for Donors in Rolled-Up Quantum Well. Micromachines 2023, 14, 1290.
Abstract
We calculate energies of shallow donors confined in a rolled-up quantum well in the presence of the electric field by solving numerically the Schrödinger equation in natural curvilinear coordinates. It is found that the curves of density of states (DOS) are very sensitive to the variation of the donor position, the geometry of the spiral and the applied electric field value. Novel results for dependencies of donor’s dipole moment and its polarizability on the electric field strength and its orientation, for different donor positions are presented. Also, we found that anisotropic Stark effect of the first order provides in this structure a dependency of the polarizability on the external electric field in a spike-like shape, giving rise to a sharp variation of the dipole moment.
Keywords
Rolled-Up Quantum well; Donor impurity; Binding energy; External electric field; Stark effect
Subject
Physical Sciences, Condensed Matter Physics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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