198 citations · 464 across the 29 of their papers we have counts for
29 papers
Possible quadrupole-order-driven commensurate-incommensurate phase transition in B20 CoGe
S. -H. Baek, V. A. Sidorov, A. V. Nikolaev +3
The B20-type cobalt germanide CoGe was investigated by measuring the specific heat, resistivity, and Co nuclear magnetic resonance (NMR). We observed a phase transition at $…
Fano-type effect in hydrogen-terminated pure nanodiamond
O. S. Kudryavtsev, R. H. Bagramov, A. M. Satanin +7
Two novel properties, unique for semiconductors: a negative electron affinity [1-2], and a high p-type surface electrical conductivity [3-4], were discovered in diamond at the end…
Saddle point anomaly of Landau levels in graphenelike structures
A. V. Nikolaev
Studying the tight binding model in an applied rational magnetic field (H) we show that in graphene there are very unusual Landau levels situated in the immediate vicinity of the s…
Ab initio based description of the unusual temperature increase of the electric field gradient at Ti sites in rutile TiO2
A. V. Nikolaev, N. M. Chtchelkatchev, A. V. Bibikov +2
Combining a precise ab initio electron band structure calculation of the TiO2 rutile structure with the temperature evolution of the Ti mean-square displacements, we reproduce a pu…
Peculiar chemical bonding between thorium and a carbon hexagon in carbon nanomaterials
A. V. Bibikov, A. V. Nikolaev, E. V. Tkalya
We explore an unusual nature of chemical bonding of the thorium atom with a ring of six carbon atoms (hexagon) in novel carbon materials. Our ab initio calculations of Th-based met…
Towards an ab initio theory for the temperature dependence of electric-field gradient in solids: application to hexagonal lattices of Zn and Cd
A. V. Nikolaev, N. M. Chtchelkatchev, D. A. Salamatin +1
Based on ab initio band structure calculations we formulate a general theoretical method for description of the temperature dependence of electric field gradient in solids. The met…