Impurity and vacancy effects in graphene
A Green function analysis has been developed for quasiparticle spectrum of a 2D graphene sheet in presence
 of different types of substitutional disorder, including vacancies. The anomalous character of impurity effects in
 this system is demonstrated, compared to those in well known...
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| Published in: | Физика низких температур |
|---|---|
| Date: | 2012 |
| Main Authors: | , |
| Format: | Article |
| Language: | English |
| Published: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2012
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/117436 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Impurity and vacancy effects in graphene / V.M. Loktev, Yu.G. Pogorelov // Физика низких температур. — 2012. — Т. 38, № 8. — С. 993-1000. — Бібліогр.: 33 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862553769576759296 |
|---|---|
| author | Loktev, V.M. Pogorelov, Yu.G. |
| author_facet | Loktev, V.M. Pogorelov, Yu.G. |
| citation_txt | Impurity and vacancy effects in graphene / V.M. Loktev, Yu.G. Pogorelov // Физика низких температур. — 2012. — Т. 38, № 8. — С. 993-1000. — Бібліогр.: 33 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | A Green function analysis has been developed for quasiparticle spectrum of a 2D graphene sheet in presence
of different types of substitutional disorder, including vacancies. The anomalous character of impurity effects in
this system is demonstrated, compared to those in well known doped semiconductors, and explained in terms of
conical singularities in the band spectrum of pure graphene. The criteria for appearance of localized states on
clusters of impurity scatterers and for qualitative restructuring of band spectrum are established and a possibility
for a specific metal/insulator transition at presence of vacancies is indicated.
|
| first_indexed | 2025-11-25T21:20:34Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-117436 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-25T21:20:34Z |
| publishDate | 2012 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Loktev, V.M. Pogorelov, Yu.G. 2017-05-23T15:04:34Z 2017-05-23T15:04:34Z 2012 Impurity and vacancy effects in graphene / V.M. Loktev, Yu.G. Pogorelov // Физика низких температур. — 2012. — Т. 38, № 8. — С. 993-1000. — Бібліогр.: 33 назв. — англ. 0132-6414 PACS: 03.65.Pm, 71.30.+h, 71.55.–i https://nasplib.isofts.kiev.ua/handle/123456789/117436 A Green function analysis has been developed for quasiparticle spectrum of a 2D graphene sheet in presence
 of different types of substitutional disorder, including vacancies. The anomalous character of impurity effects in
 this system is demonstrated, compared to those in well known doped semiconductors, and explained in terms of
 conical singularities in the band spectrum of pure graphene. The criteria for appearance of localized states on
 clusters of impurity scatterers and for qualitative restructuring of band spectrum are established and a possibility
 for a specific metal/insulator transition at presence of vacancies is indicated. Y.P. thanks V.A. Miransky, J.P. Carbotte and S.G. Sharapov
 for very useful discussions of disorder effects in graphene,
 and kind hospitality by the Department of Applied
 Mathematics of University of Western Ontario during his
 sabbatical stay there, when this work was initiated. The support
 from Portuguese Fundação para a Ciência e a Tecnologia
 is gratefully acknowledged. V.L. thanks the SCOPES
 grant and also the Special Program of fundamental researches
 by Physics and Astronomy Department of NAS of
 Ukraine for the partial support. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Low Temperature Spectroscopy and Radiation Effects Impurity and vacancy effects in graphene Article published earlier |
| spellingShingle | Impurity and vacancy effects in graphene Loktev, V.M. Pogorelov, Yu.G. Low Temperature Spectroscopy and Radiation Effects |
| title | Impurity and vacancy effects in graphene |
| title_full | Impurity and vacancy effects in graphene |
| title_fullStr | Impurity and vacancy effects in graphene |
| title_full_unstemmed | Impurity and vacancy effects in graphene |
| title_short | Impurity and vacancy effects in graphene |
| title_sort | impurity and vacancy effects in graphene |
| topic | Low Temperature Spectroscopy and Radiation Effects |
| topic_facet | Low Temperature Spectroscopy and Radiation Effects |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/117436 |
| work_keys_str_mv | AT loktevvm impurityandvacancyeffectsingraphene AT pogorelovyug impurityandvacancyeffectsingraphene |