Electronic and magnetic properties of graphite quantum dots
We study the electronic and magnetic properties of multilayer quantum dots (MQDs) of graphite in the nearest-neighbor approximation of tight-binding model. We calculate the electronic density of states and orbital susceptibility of the system as function of the Fermi level location. We demonstrate t...
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| Дата: | 2015 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2015
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/122084 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Electronic and magnetic properties of graphite quantum dots / H. Abdelsalam, T. Espinosa-Ortega, I. Luk’yanchuk // Физика низких температур. — 2015. — Т. 41, № 5. — С. 508-513. — Бібліогр.: 31 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-122084 |
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dspace |
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irk-123456789-1220842017-06-27T03:03:51Z Electronic and magnetic properties of graphite quantum dots Abdelsalam, H. Espinosa-Ortega, T. Luk’yanchuk, I. К 70-летию со дня рождения В. М. Локтева We study the electronic and magnetic properties of multilayer quantum dots (MQDs) of graphite in the nearest-neighbor approximation of tight-binding model. We calculate the electronic density of states and orbital susceptibility of the system as function of the Fermi level location. We demonstrate that properties of MQD depend strongly on the shape of the system, on the parity of the layer number and on the form of the cluster edge. The special emphasis is given to reveal the new properties with respect to the monolayer graphene quantum dots. The most interesting results are obtained for the triangular MQD with zig-zag edge at near-zero energies. The asymmetrically smeared multipeak feature is observed at Dirac point within the size-quantized energy gap region, where monolayer graphene flakes demonstrate the highly-degenerate zero-energy state. This feature, provided by the edge-localized electronic states results in the splash-wavelet behavior in diamagnetic orbital susceptibility as function of energy. 2015 Article Electronic and magnetic properties of graphite quantum dots / H. Abdelsalam, T. Espinosa-Ortega, I. Luk’yanchuk // Физика низких температур. — 2015. — Т. 41, № 5. — С. 508-513. — Бібліогр.: 31 назв. — англ. 0132-6414 PACS: 75.75.–c, 73.21.La http://dspace.nbuv.gov.ua/handle/123456789/122084 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
К 70-летию со дня рождения В. М. Локтева К 70-летию со дня рождения В. М. Локтева |
| spellingShingle |
К 70-летию со дня рождения В. М. Локтева К 70-летию со дня рождения В. М. Локтева Abdelsalam, H. Espinosa-Ortega, T. Luk’yanchuk, I. Electronic and magnetic properties of graphite quantum dots Физика низких температур |
| description |
We study the electronic and magnetic properties of multilayer quantum dots (MQDs) of graphite in the nearest-neighbor approximation of tight-binding model. We calculate the electronic density of states and orbital susceptibility of the system as function of the Fermi level location. We demonstrate that properties of MQD depend strongly on the shape of the system, on the parity of the layer number and on the form of the cluster edge. The special emphasis is given to reveal the new properties with respect to the monolayer graphene quantum dots. The most interesting results are obtained for the triangular MQD with zig-zag edge at near-zero energies. The asymmetrically smeared multipeak feature is observed at Dirac point within the size-quantized energy gap region, where monolayer graphene flakes demonstrate the highly-degenerate zero-energy state. This feature, provided by the edge-localized electronic states results in the splash-wavelet behavior in diamagnetic orbital susceptibility as function of energy. |
| format |
Article |
| author |
Abdelsalam, H. Espinosa-Ortega, T. Luk’yanchuk, I. |
| author_facet |
Abdelsalam, H. Espinosa-Ortega, T. Luk’yanchuk, I. |
| author_sort |
Abdelsalam, H. |
| title |
Electronic and magnetic properties of graphite quantum dots |
| title_short |
Electronic and magnetic properties of graphite quantum dots |
| title_full |
Electronic and magnetic properties of graphite quantum dots |
| title_fullStr |
Electronic and magnetic properties of graphite quantum dots |
| title_full_unstemmed |
Electronic and magnetic properties of graphite quantum dots |
| title_sort |
electronic and magnetic properties of graphite quantum dots |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2015 |
| topic_facet |
К 70-летию со дня рождения В. М. Локтева |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/122084 |
| citation_txt |
Electronic and magnetic properties of graphite quantum dots / H. Abdelsalam, T. Espinosa-Ortega, I. Luk’yanchuk // Физика низких температур. — 2015. — Т. 41, № 5. — С. 508-513. — Бібліогр.: 31 назв. — англ. |
| series |
Физика низких температур |
| work_keys_str_mv |
AT abdelsalamh electronicandmagneticpropertiesofgraphitequantumdots AT espinosaortegat electronicandmagneticpropertiesofgraphitequantumdots AT lukyanchuki electronicandmagneticpropertiesofgraphitequantumdots |
| first_indexed |
2023-10-18T20:41:02Z |
| last_indexed |
2023-10-18T20:41:02Z |
| _version_ |
1796150839751999488 |