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Träfflista för sökning "WFRF:(Rudenko A.N.) "

Search: WFRF:(Rudenko A.N.)

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1.
  • Mogulkoc, A., et al. (author)
  • Effect of long-range structural corrugations on magnetotransport properties of phosphorene in tilted magnetic field
  • 2017
  • In: Physical Review B. - : AMER PHYSICAL SOC. - 2469-9950 .- 2469-9969. ; 96:8
  • Journal article (peer-reviewed)abstract
    • Rippling is an inherent quality of two-dimensional materials playing an important role in determining their properties. Here, we study the effect of structural corrugations on the electronic and transport properties of monolayer black phosphorus (phosphorene) in the presence of tilted magnetic field. We follow a perturbative approach to obtain analytical corrections to the spectrum of Landau levels induced by a long-wavelength corrugation potential. We show that surface corrugations have a non-negligible effect on the electronic spectrum of phosphorene in tilted magnetic field. Particularly, the Landau levels are shown to exhibit deviations from the linear field dependence. The observed effect become especially pronounced at large tilt angles and corrugation amplitudes. Magnetotransport properties are further examined in the low temperature regime taking into account impurity scattering. We calculate magnetic field dependence of the longitudinal and Hall resistivities and find that the nonlinear effects reflecting the corrugation might be observed even in moderate fields (B amp;lt; 10 T).
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2.
  • Rudenko, A.N., et al. (author)
  • Strong electron-phonon coupling and phonon-induced superconductivity in tetragonal C3N4 with hole doping
  • 2024
  • In: Physical Review B. - : American Physical Society. - 2469-9950 .- 2469-9969. ; 109:1
  • Journal article (peer-reviewed)abstract
    • C3N4 is a recently discovered phase of carbon nitrides with the tetragonal crystal structure [D. Laniel et al., Adv. Mater. (2023), doi:10.1002/adma.202308030] that is stable at ambient conditions. C3N4 is a semiconductor exhibiting flat-band anomalies in the valence band, suggesting the emergence of many-body instabilities upon hole doping. Here, using state-of-the-art first-principles calculations we show that hole-doped C3N4 reveals strong electron-phonon coupling, leading to the formation of a gapped superconducting state. The phase transition temperatures turn out to be strongly dependent on the hole concentration. We propose that holes could be injected into C3N4 via boron doping which induces, according to our results, a rigid shift of the Fermi energy without significant modification of the electronic structure. Based on the electron-phonon coupling and Coulomb pseudopotential calculated from first principles, we conclude that the boron concentration of 6 atoms per nm3 would be required to reach the critical temperature of ∼36 K at ambient pressure.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Rudenko, A. N. (2)
Abrikosov, Igor (1)
Katsnelson, Mikhail, ... (1)
Modarresi, Mohsen (1)
Mogulkoc, A. (1)
Badrtdinov, D.I. (1)
University
Linköping University (2)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (2)

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