Electronic states and optical transitions in a graphene quantum dot in a normal magnetic field
An analytical approach using the Dirac-Weyl equation is implemented to obtain the energy spectrum and optical absorption of a circular graphene quantum dot in the presence of an external magnetic field. The results are obtained for the infinite-mass and zigzag boundary conditions. We found that the...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Faculty of Technical Sciences in Cacak
2011-01-01
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| Series: | Serbian Journal of Electrical Engineering |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-4869/2011/1451-48691101053G.pdf |
| _version_ | 1811200454063816704 |
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| author | Grujić Marko Tadić Milan |
| author_facet | Grujić Marko Tadić Milan |
| author_sort | Grujić Marko |
| collection | DOAJ |
| description | An analytical approach using the Dirac-Weyl equation is implemented to obtain the energy spectrum and optical absorption of a circular graphene quantum dot in the presence of an external magnetic field. The results are obtained for the infinite-mass and zigzag boundary conditions. We found that the energy spectra of a dot with zigzag boundary condition exhibit a zero energy band regardless of the value of the magnetic field, while for the infinite mass boundary conditions, the zero energy states appear only for high magnetic fields. |
| first_indexed | 2024-04-12T02:04:37Z |
| format | Article |
| id | doaj.art-8f8ce441809e45ba8f3733c20b9187b5 |
| institution | Directory Open Access Journal |
| issn | 1451-4869 2217-7183 |
| language | English |
| last_indexed | 2024-04-12T02:04:37Z |
| publishDate | 2011-01-01 |
| publisher | Faculty of Technical Sciences in Cacak |
| record_format | Article |
| series | Serbian Journal of Electrical Engineering |
| spelling | doaj.art-8f8ce441809e45ba8f3733c20b9187b52022-12-22T03:52:35ZengFaculty of Technical Sciences in CacakSerbian Journal of Electrical Engineering1451-48692217-71832011-01-0181536210.2298/SJEE1101053G1451-48691101053GElectronic states and optical transitions in a graphene quantum dot in a normal magnetic fieldGrujić Marko0Tadić Milan1School of Electrical Engineering, Belgrade%SR13-01.06School of Electrical Engineering, Belgrade%SR13-01.06An analytical approach using the Dirac-Weyl equation is implemented to obtain the energy spectrum and optical absorption of a circular graphene quantum dot in the presence of an external magnetic field. The results are obtained for the infinite-mass and zigzag boundary conditions. We found that the energy spectra of a dot with zigzag boundary condition exhibit a zero energy band regardless of the value of the magnetic field, while for the infinite mass boundary conditions, the zero energy states appear only for high magnetic fields.http://www.doiserbia.nb.rs/img/doi/1451-4869/2011/1451-48691101053G.pdfgraphenecircularquantum dot |
| spellingShingle | Grujić Marko Tadić Milan Electronic states and optical transitions in a graphene quantum dot in a normal magnetic field Serbian Journal of Electrical Engineering graphene circular quantum dot |
| title | Electronic states and optical transitions in a graphene quantum dot in a normal magnetic field |
| title_full | Electronic states and optical transitions in a graphene quantum dot in a normal magnetic field |
| title_fullStr | Electronic states and optical transitions in a graphene quantum dot in a normal magnetic field |
| title_full_unstemmed | Electronic states and optical transitions in a graphene quantum dot in a normal magnetic field |
| title_short | Electronic states and optical transitions in a graphene quantum dot in a normal magnetic field |
| title_sort | electronic states and optical transitions in a graphene quantum dot in a normal magnetic field |
| topic | graphene circular quantum dot |
| url | http://www.doiserbia.nb.rs/img/doi/1451-4869/2011/1451-48691101053G.pdf |
| work_keys_str_mv | AT grujicmarko electronicstatesandopticaltransitionsinagraphenequantumdotinanormalmagneticfield AT tadicmilan electronicstatesandopticaltransitionsinagraphenequantumdotinanormalmagneticfield |