Impurity and vacancy effects in graphene

dc.contributor.author	Loktev, V.M.
dc.contributor.author	Pogorelov, Yu.G.
dc.date.accessioned	2017-05-23T15:04:34Z
dc.date.available	2017-05-23T15:04:34Z
dc.date.issued	2012
dc.identifier.citation	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.	uk_UA
dc.identifier.issn	0132-6414
dc.identifier.other	PACS: 03.65.Pm, 71.30.+h, 71.55.–i
dc.identifier.uri	http://dspace.nbuv.gov.ua/handle/123456789/117436
dc.description.abstract	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.	uk_UA
dc.description.sponsorship	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.	uk_UA
dc.language.iso	en	uk_UA
dc.publisher	Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України	uk_UA
dc.relation.ispartof	Физика низких температур
dc.subject	Low Temperature Spectroscopy and Radiation Effects	uk_UA
dc.title	Impurity and vacancy effects in graphene	uk_UA
dc.type	Article	uk_UA
dc.status	published earlier	uk_UA