Zobrazeno 1 - 10
of 384
pro vyhledávání: '"Pogorelov, A G"'
Autor:
Pogorelov, Y. G., Loktev, V. M.
We consider electronic spectra of graphene nanotubes and their perturbation by impurity atoms absorbed at different positions on nanotube surfaces, within the framework of Anderson hybrid model. A special attention is given to the cases when Dirac-li
Externí odkaz:
http://arxiv.org/abs/2312.05812
Autor:
Pogorelov, Yuriy G., Loktev, Vadim M.
We consider finite ribbons of graphene with armchair orientation of their edges to study in detail impurity effects on specific Dirac-like modes. In the framework of Anderson hybrid model of impurity perturbation, a possibility for Mott localization
Externí odkaz:
http://arxiv.org/abs/2209.06721
Publikováno v:
Phys. Rev. B 102, 155414 (2020)
Unique electronic band structure of graphene with its semi-metallic features near the charge neutrality point is sensitive to impurity effects. Using the Lifshitz and Anderson impurity models, we study in detail the disorder induced spectral phenomen
Externí odkaz:
http://arxiv.org/abs/2005.12643
Akademický článek
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Akademický článek
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Autor:
Pogorelov, Y. G., Loktev, V. M.
Publikováno v:
Condens. Matter Phys., 2018, vol. 21, No. 3, 33704
A theoretical analysis is presented on possible effects of disorder by dopants in high-temperature superconducting cuprate perovskites, to define their basic spectra of spin and electronic excitations, and the subsequent observable properties, especi
Externí odkaz:
http://arxiv.org/abs/1807.10428
Autor:
Pogorelov, Yuriy G., Loktev, Vadim M.
Publikováno v:
Phys. Rev. B 93, 045117 (2016)
Restructuring of electronic spectrum in a buckled silicene monolayer under some applied voltage between its two sublattices and in presence of certain impurity atoms is considered. A special attention is given to formation of localized impurity level
Externí odkaz:
http://arxiv.org/abs/1509.03702
Publikováno v:
Phys. Rev. B 92, 075401 (2015)
Formation of localized impurity levels within the band gap in bigraphene under applied electric field is considered and the conditions for their collectivization at finite impurity concentration are established. It is shown that a qualitative restruc
Externí odkaz:
http://arxiv.org/abs/1410.1721
Autor:
Timopheev, A. A., Pogorelov, Yu. G., Cardoso, S., Freitas, P. P., Kakazei, G. N., Sobolev, N. A.
Publikováno v:
Physical Review B 89, 144410 (2014)
Two ferromagnetic layers magnetically decoupled by a thick normal metal spacer layer can be, nevertheless, dynamically coupled via spin currents emitted by the spin-pump and absorbed through the spin-torque effects at the neighboring interfaces. A de
Externí odkaz:
http://arxiv.org/abs/1401.1672
Publikováno v:
Phys. Rev. B 88, 224518 (2013)
Effects of impurities and disorder on transport properties by electronic quasiparticles in superconducting iron pnictides are theoretically considered. The most prominent new features compared to the case of pure material should appear at high enough
Externí odkaz:
http://arxiv.org/abs/1308.2351