Electron g-factor in nanostructures: continuum media and atomistic approach
Abstract We report studies of $${\varvec{k}}$$ k -dependent Landé g-factor, performed by both continuous media approximation $${\varvec{k}}{\varvec{\cdot }}{\varvec{p}}$$ k · p method, and atomistic tight-binding $$\hbox {sp}^3\hbox {d}^5\hbox {s}^*$$ sp 3 d 5 s ∗ approach. We propose an effective,...
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Nature Portfolio
2020
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oai:doaj.org-article:7e8337f5b9334b7f992aeed770be9c4f2021-12-02T13:58:13ZElectron g-factor in nanostructures: continuum media and atomistic approach10.1038/s41598-020-79133-02045-2322https://doaj.org/article/7e8337f5b9334b7f992aeed770be9c4f2020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79133-0https://doaj.org/toc/2045-2322Abstract We report studies of $${\varvec{k}}$$ k -dependent Landé g-factor, performed by both continuous media approximation $${\varvec{k}}{\varvec{\cdot }}{\varvec{p}}$$ k · p method, and atomistic tight-binding $$\hbox {sp}^3\hbox {d}^5\hbox {s}^*$$ sp 3 d 5 s ∗ approach. We propose an effective, mesoscopic model for InAs that we are able to successfully compare with atomistic calculations, for both very small and very large nanostructures, with a number of atoms reaching over 60 million. Finally, for nanostructure dimensions corresponding to near-zero g-factor we report electron spin states anti-crossing as a function of system size, despite no shape-anisotropy nor strain effects included, and merely due to breaking of atomistic symmetry of cation/anion planes constituting the system.Krzysztof GawareckiMichał ZielińskiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-11 (2020) |
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EN |
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Medicine R Science Q |
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Medicine R Science Q Krzysztof Gawarecki Michał Zieliński Electron g-factor in nanostructures: continuum media and atomistic approach |
| description |
Abstract We report studies of $${\varvec{k}}$$ k -dependent Landé g-factor, performed by both continuous media approximation $${\varvec{k}}{\varvec{\cdot }}{\varvec{p}}$$ k · p method, and atomistic tight-binding $$\hbox {sp}^3\hbox {d}^5\hbox {s}^*$$ sp 3 d 5 s ∗ approach. We propose an effective, mesoscopic model for InAs that we are able to successfully compare with atomistic calculations, for both very small and very large nanostructures, with a number of atoms reaching over 60 million. Finally, for nanostructure dimensions corresponding to near-zero g-factor we report electron spin states anti-crossing as a function of system size, despite no shape-anisotropy nor strain effects included, and merely due to breaking of atomistic symmetry of cation/anion planes constituting the system. |
| format |
article |
| author |
Krzysztof Gawarecki Michał Zieliński |
| author_facet |
Krzysztof Gawarecki Michał Zieliński |
| author_sort |
Krzysztof Gawarecki |
| title |
Electron g-factor in nanostructures: continuum media and atomistic approach |
| title_short |
Electron g-factor in nanostructures: continuum media and atomistic approach |
| title_full |
Electron g-factor in nanostructures: continuum media and atomistic approach |
| title_fullStr |
Electron g-factor in nanostructures: continuum media and atomistic approach |
| title_full_unstemmed |
Electron g-factor in nanostructures: continuum media and atomistic approach |
| title_sort |
electron g-factor in nanostructures: continuum media and atomistic approach |
| publisher |
Nature Portfolio |
| publishDate |
2020 |
| url |
https://doaj.org/article/7e8337f5b9334b7f992aeed770be9c4f |
| work_keys_str_mv |
AT krzysztofgawarecki electrongfactorinnanostructurescontinuummediaandatomisticapproach AT michałzielinski electrongfactorinnanostructurescontinuummediaandatomisticapproach |
| _version_ |
1718392208414998528 |