Stark Effect for Donors in Rolled-Up Quantum Well
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 (DOSs) are very sensitive to the variation of the do...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-06-01
|
| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/14/7/1290 |
| _version_ | 1797588326587301888 |
|---|---|
| author | Luis Francisco Garcia Russi Ilia D. Mikhailov Ruthber Antonio Escorcia Caballero Jose Sierra Ortega Gene Elizabeth Escorcia Salas |
| author_facet | Luis Francisco Garcia Russi Ilia D. Mikhailov Ruthber Antonio Escorcia Caballero Jose Sierra Ortega Gene Elizabeth Escorcia Salas |
| author_sort | Luis Francisco Garcia Russi |
| collection | DOAJ |
| description | 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 (DOSs) 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. Additionally, we found that the 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. |
| first_indexed | 2024-03-11T00:50:23Z |
| format | Article |
| id | doaj.art-fb927e8e72404b2d984bc0305393aea8 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-11T00:50:23Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-fb927e8e72404b2d984bc0305393aea82023-11-18T20:31:21ZengMDPI AGMicromachines2072-666X2023-06-01147129010.3390/mi14071290Stark Effect for Donors in Rolled-Up Quantum WellLuis Francisco Garcia Russi0Ilia D. Mikhailov1Ruthber Antonio Escorcia Caballero2Jose Sierra Ortega3Gene Elizabeth Escorcia Salas4Escuela de Física, Facultad de Ciencias, Universidad Industrial de Santander, A. A. 678, Bucaramanga 680002, ColombiaEscuela de Física, Facultad de Ciencias, Universidad Industrial de Santander, A. A. 678, Bucaramanga 680002, ColombiaGrupo de Investigación en Teoría de la Materia Condensada, Universidad del Magdalena, Santa Marta 470001, ColombiaGrupo de Investigación en Teoría de la Materia Condensada, Universidad del Magdalena, Santa Marta 470001, ColombiaGrupo de Investigación en Teoría de la Materia Condensada, Universidad del Magdalena, Santa Marta 470001, ColombiaWe 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 (DOSs) 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. Additionally, we found that the 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.https://www.mdpi.com/2072-666X/14/7/1290rolled-up quantum welldonor impuritybinding energyexternal electric fieldStark effect |
| spellingShingle | Luis Francisco Garcia Russi Ilia D. Mikhailov Ruthber Antonio Escorcia Caballero Jose Sierra Ortega Gene Elizabeth Escorcia Salas Stark Effect for Donors in Rolled-Up Quantum Well Micromachines rolled-up quantum well donor impurity binding energy external electric field Stark effect |
| title | Stark Effect for Donors in Rolled-Up Quantum Well |
| title_full | Stark Effect for Donors in Rolled-Up Quantum Well |
| title_fullStr | Stark Effect for Donors in Rolled-Up Quantum Well |
| title_full_unstemmed | Stark Effect for Donors in Rolled-Up Quantum Well |
| title_short | Stark Effect for Donors in Rolled-Up Quantum Well |
| title_sort | stark effect for donors in rolled up quantum well |
| topic | rolled-up quantum well donor impurity binding energy external electric field Stark effect |
| url | https://www.mdpi.com/2072-666X/14/7/1290 |
| work_keys_str_mv | AT luisfranciscogarciarussi starkeffectfordonorsinrolledupquantumwell AT iliadmikhailov starkeffectfordonorsinrolledupquantumwell AT ruthberantonioescorciacaballero starkeffectfordonorsinrolledupquantumwell AT josesierraortega starkeffectfordonorsinrolledupquantumwell AT geneelizabethescorciasalas starkeffectfordonorsinrolledupquantumwell |