Vacuum polarization in graphene with a topological defect
The influence of a topological defect in graphene on the ground state of electronic quasiparticle
 excitations is studied in the framework of the long-wavelength continuum model originating in the tightbinding
 approximation for the nearest neighbour interaction in the graphitic latt...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2008 |
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| Format: | Artikel |
| Sprache: | Englisch |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2008
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Vacuum polarization in graphene with a topological defect
 / Yu.A. Sitenko, N.D. Vlasii
 // Физика низких температур. — 2008. — Т. 34, № 10. — С. 1049-1057. — Бібліогр.: 20 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862743621693865984 |
|---|---|
| author | Sitenko, Yu.A. Vlasii, N.D. |
| author_facet | Sitenko, Yu.A. Vlasii, N.D. |
| citation_txt | Vacuum polarization in graphene with a topological defect
 / Yu.A. Sitenko, N.D. Vlasii
 // Физика низких температур. — 2008. — Т. 34, № 10. — С. 1049-1057. — Бібліогр.: 20 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | The influence of a topological defect in graphene on the ground state of electronic quasiparticle
excitations is studied in the framework of the long-wavelength continuum model originating in the tightbinding
approximation for the nearest neighbour interaction in the graphitic lattice. Atopological defect that
rolls up a graphitic sheet into a nanocone is represented by a pointlike pseudomagnetic vortex with a flux
which is related to the deficit angle of the cone. The method of self-adjoint extensions is employed to define
the set of physically acceptable boundary conditions at the apex of the nanocone. The electronic system on a
graphitic nanocone is found to acquire the ground state condensate and current of special type, and we
determine the dependence of these quantities on the deficit angle of the nanocone, continuous parameter of
the boundary condition at the apex, and the distance from the apex.
|
| first_indexed | 2025-12-07T20:31:04Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-117562 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T20:31:04Z |
| publishDate | 2008 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Sitenko, Yu.A. Vlasii, N.D. 2017-05-24T18:35:06Z 2017-05-24T18:35:06Z 2008 Vacuum polarization in graphene with a topological defect
 / Yu.A. Sitenko, N.D. Vlasii
 // Физика низких температур. — 2008. — Т. 34, № 10. — С. 1049-1057. — Бібліогр.: 20 назв. — англ. 0132-6414 PACS: 11.10.–z;73.43.Cd;73.61.Wp;81.05.Uw https://nasplib.isofts.kiev.ua/handle/123456789/117562 The influence of a topological defect in graphene on the ground state of electronic quasiparticle
 excitations is studied in the framework of the long-wavelength continuum model originating in the tightbinding
 approximation for the nearest neighbour interaction in the graphitic lattice. Atopological defect that
 rolls up a graphitic sheet into a nanocone is represented by a pointlike pseudomagnetic vortex with a flux
 which is related to the deficit angle of the cone. The method of self-adjoint extensions is employed to define
 the set of physically acceptable boundary conditions at the apex of the nanocone. The electronic system on a
 graphitic nanocone is found to acquire the ground state condensate and current of special type, and we
 determine the dependence of these quantities on the deficit angle of the nanocone, continuous parameter of
 the boundary condition at the apex, and the distance from the apex. We would like to thank V.P. Gusynin for stimulating
 discussions. The work of Yu.A. S. was supported by grant
 No. 10/07-N «Nanostructure systems, nanomaterials, nanotechnologies»
 of the National Academy of Sciences of
 Ukraine and grant No. 05-1000008-7865 of the INTAS.
 We acknowledge the partial support of the Department of
 Physics and Astronomy of the National Academy of
 Sciences of Ukraine under Special program «Fundamental
 properties of physical systems in extremal conditions» and
 the Swiss National Science Foundation under the SCOPES
 project No. IB7320-110848. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Graphene and graphite multilayers Vacuum polarization in graphene with a topological defect Article published earlier |
| spellingShingle | Vacuum polarization in graphene with a topological defect Sitenko, Yu.A. Vlasii, N.D. Graphene and graphite multilayers |
| title | Vacuum polarization in graphene with a topological defect |
| title_full | Vacuum polarization in graphene with a topological defect |
| title_fullStr | Vacuum polarization in graphene with a topological defect |
| title_full_unstemmed | Vacuum polarization in graphene with a topological defect |
| title_short | Vacuum polarization in graphene with a topological defect |
| title_sort | vacuum polarization in graphene with a topological defect |
| topic | Graphene and graphite multilayers |
| topic_facet | Graphene and graphite multilayers |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/117562 |
| work_keys_str_mv | AT sitenkoyua vacuumpolarizationingraphenewithatopologicaldefect AT vlasiind vacuumpolarizationingraphenewithatopologicaldefect |