Skip navigation
Please use this identifier to cite or link to this item:
Title: Effect of cobalt particle deposition on quantum corrections to Drude conductivity in twisted CVD graphene
Authors: Fedotov, A. K.
Prishchepa, S. L.
Fedotov, A. S.
Gumennik, V. E.
Komissarov, I. V.
Konakov, A. O.
Vorobyova, S. A.
Ivashkevich, O. A.
Kharchenko, A. A.
Keywords: публикации ученых;graphene;metal structures;electron transport;magnetostriction
Issue Date: 2019
Publisher: Национальный исследовательский технологический университет «МИСиС»
Citation: Effect of cobalt particle deposition on quantum corrections to Drude conductivity in twisted CVD graphene / Alexander K. Fedotov [et. al.] // Modern Electronic Materials. – 2019. – Vol. 5 (4). – P. 165–173. – DOI: 10.3897/j.moem.5.4.52068.
Abstract: We have studied carrier transport in twisted CVD graphene decorated with electrodeposited Co particles forming Ohmic contacts with graphene layers. We have compared layer resistivity as a function of temperature and magnetic field R(T, B) for as-synthesized and decorated twisted graphene on silicon oxide substrates. Experiments have proven the existence of negative (induction < 1 Tl) and positive (induction > 1 Tl) contributions to magnetoresistance in both specimen types. The R(T, B) functions have been analyzed based on the theory of 2D quantum interference corrections to Drude conductivity taking into account competition of hopping conductivity mechanism. We show that for the experimental temperature range (2–300 K) and magnetic field range (up to 8 Tl), carrier transport description in test graphene requires taking into account at least three interference contributions to conductivity, i.e., from weak localization, intervalley scattering and pseudospin chirality, as well as graphene buckling induced by thermal fluctuations.
Appears in Collections:Публикации в зарубежных изданиях

Files in This Item:
File Description SizeFormat 
Fedotov_Effect.pdf1.17 MBAdobe PDFView/Open
Show full item record Google Scholar

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.