ŠOPÍK, Břetislav, J. KAILASVUORI and M. TRUSHIN. Charge transport in two dimensions limited by strong short-range scatterers: Going beyond parabolic dispersion and Born approximation. Physical Review B. Maryland (USA): The American Physical Society, 2014, vol. 89, No 16, p. "nestránkováno", 7 pp. ISSN 1098-0121. Available from: https://dx.doi.org/10.1103/PhysRevB.89.165308.
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Basic information
Original name Charge transport in two dimensions limited by strong short-range scatterers: Going beyond parabolic dispersion and Born approximation
Authors ŠOPÍK, Břetislav (203 Czech Republic, guarantor, belonging to the institution), J. KAILASVUORI (276 Germany) and M. TRUSHIN (276 Germany).
Edition Physical Review B, Maryland (USA), The American Physical Society, 2014, 1098-0121.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10302 Condensed matter physics
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 3.736
RIV identification code RIV/00216224:14740/14:00079371
Organization unit Central European Institute of Technology
Doi http://dx.doi.org/10.1103/PhysRevB.89.165308
UT WoS 000345631400001
Keywords in English SINGLE DIRAC CONE; TRILAYER GRAPHENE; RHOMBOHEDRAL GRAPHITE; TOPOLOGICAL-INSULATOR; BILAYER GRAPHENE; BAND STRUCTURE; BERRYS PHASE; GAP; FERMIONS; SURFACE
Tags kontrola MP, MP, rivok
Tags International impact, Reviewed
Changed by Changed by: Martina Prášilová, učo 342282. Changed: 4/3/2015 14:41.
Abstract
We investigate the conductivity of charge carriers confined to a two-dimensional system with the nonparabolic dispersion k(N) with N being an arbitrary natural number. A delta-shaped scattering potential is assumed as the major source of disorder. We employ the exact solution of the Lippmann-Schwinger equation to derive an analytical Boltzmann conductivity formula valid for an arbitrary scattering potential strength. The range of applicability of our analytical results is assessed by a numerical study based on the finite size Kubo formula. We find that for any N > 1, the conductivity demonstrates a linear dependence on the carrier concentration in the limit of a strong scattering potential strength. This finding agrees with the conductivity measurements performed recently on chirally stacked multilayer graphene where the lowest two bands are nonparabolic and the adsorbed hydrocarbons might act as strong short-range scatterers.
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