Результаты исследований: Научные публикации в периодических изданиях › статья
The Role of the Covalent Interaction in the Formation of the Electronic Structure of Au and Cu Intercalated Graphene on Ni(111). / Popova(Rybkina), A. A.; Shikin, A. M.; Rybkin, A. G.; Marchenko, D. E.; Vilkov, O. Yu.; Makarova, A. A.; Varykhalov, A. Yu.; Rader, O.
в: Physics of the Solid State, Том 53, № 12, 2011, стр. 2539-2544.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - The Role of the Covalent Interaction in the Formation of the Electronic Structure of Au and Cu Intercalated Graphene on Ni(111)
AU - Popova(Rybkina), A. A.
AU - Shikin, A. M.
AU - Rybkin, A. G.
AU - Marchenko, D. E.
AU - Vilkov, O. Yu.
AU - Makarova, A. A.
AU - Varykhalov, A. Yu.
AU - Rader, O.
PY - 2011
Y1 - 2011
N2 - A study is reported of the role played by covalent interaction in the coupling of graphene formed on Ni(111) to the Ni substrate and after intercalation of Au and Cu monolayers underneath the graphene. Covalent interaction of the graphene π states with d states of the underlying metal (Ni, Au, Cu) has been shown to bring about noticeable distortion of the dispersion relations of the graphene electronic π states in the region of crossing with d states, which can be described in terms of avoided crossing effects and formation of bonding and antibonding d–π states. The overall graphene coupling to a substrate is mediated by the energy and occupation of the hybridized states involved. Because graphene formed directly on the Ni(111) surface has only bonding type occupied states, the coupling to the substrate is very strong. Interaction with intercalated Au and Cu layers makes occupation of states of the antibonding and bonding types comparable, which translates into a weak resultant overall coupling of graphene to
AB - A study is reported of the role played by covalent interaction in the coupling of graphene formed on Ni(111) to the Ni substrate and after intercalation of Au and Cu monolayers underneath the graphene. Covalent interaction of the graphene π states with d states of the underlying metal (Ni, Au, Cu) has been shown to bring about noticeable distortion of the dispersion relations of the graphene electronic π states in the region of crossing with d states, which can be described in terms of avoided crossing effects and formation of bonding and antibonding d–π states. The overall graphene coupling to a substrate is mediated by the energy and occupation of the hybridized states involved. Because graphene formed directly on the Ni(111) surface has only bonding type occupied states, the coupling to the substrate is very strong. Interaction with intercalated Au and Cu layers makes occupation of states of the antibonding and bonding types comparable, which translates into a weak resultant overall coupling of graphene to
KW - graphene
KW - intercalation
KW - electronic and structure
KW - photoelectron spectroscopy
U2 - DOI: 10.1134/S1063783411120195
DO - DOI: 10.1134/S1063783411120195
M3 - Article
VL - 53
SP - 2539
EP - 2544
JO - Physics of the Solid State
JF - Physics of the Solid State
SN - 1063-7834
IS - 12
ER -
ID: 5292623