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Three-Dimensional Analysis of the Electronic Structure of Cylindrical Vertical Quantum Dots
| Content Provider | Scilit |
|---|---|
| Author | Matagne, Philippe Leburton, Jean-Pierre |
| Copyright Year | 2021 |
| Description | Recent experiments on single-electron charging effects in cylindrical vertical quantum dots (CVQDs) have suggested the existence of atomiclike properties of the confined electrons such as orbital motion, three-dimensional energy quantization, shell structure, and even Hund's rule.$ ^{1–4}$ For these reasons, CVQDs are often called “artificial $atoms.”^{4–9}$ However, while in real atoms the confining potential arising from the nucleus charge is characterized by a central symmetry, and varies as the inverse of the distance from the center, in “artificial atoms” the potential is strongly confined in the vertical direction, while it is much weaker in the perpendicular plane with a quasiharmonic profile. For this reason, the two-dimensional (2D) harmonic oscillator model has often been used for interpreting, with relative success, the 2D atomiclike features observed in experiments.$ ^{1–4}$ ,$ ^{10–14}$ However, the 2D harmonic oscillator model is an ideal picture, that suffers from significant shortcomings such as an over-estimation of the electron localization in the quantum dot $(QD),^{15}$ and the perfect level degeneracy within 2D shells, which is different from experimental observations.$ ^{1–4}$ Book Name: Physical Models for Quantum Dots |
| Related Links | https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9781003148494-25&type=chapterpdf |
| Ending Page | 417 |
| Page Count | 31 |
| Starting Page | 387 |
| DOI | 10.1201/9781003148494-25 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2021-11-04 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Physical Models for Quantum Dots Model Structure Quantum Dots Atoms Harmonic Cylindrical Cvqds |
| Content Type | Text |
| Resource Type | Chapter |
