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6 papers · 2 filters
Electron-hole pairing in topological insulator thin film
D. K. Efimkin, Yu. E. Lozovik, A. A. Sokolik
We consider pairing of massless Dirac electrons and holes located on opposite surfaces of thin film of "strong" three-dimensional topological insulator. Such pairing was predicted…
Resonant manifestations of chiral excitons in magnetooptical Faraday and Kerr effects in topological insulator film
D. K. Efimkin, Yu. E. Lozovik
Manifestation of chiral excitons on surfaces of topological insulator thin film with magnetically induced energy gap in the surface spectrum in magnetooptical Kerr and Faraday effe…
Modeling of graphene-based NEMS
Irina V. Lebedeva, Andrey A. Knizhnik, Andrey M. Popov +2
The possibility of designing nanoelectromechanical systems (NEMS) based on relative motion or vibrations of graphene layers is analyzed. Ab initio and empirical calculations of the…
Barriers to motion and rotation of graphene layers based on measurements of shear mode frequencies
Andrey M. Popov, Irina V. Lebedeva, Andrey A. Knizhnik +2
Both van der Waals corrected density functional theory and classical calculations show that the potential relief of interaction energy between layers of graphite and few-layer grap…
Nanotube-based scanning rotational microscope
Andrey M. Popov, Irina V. Lebedeva, Andrey A. Knizhnik
A scheme of the scanning rotational microscope is designed. This scheme is based on using carbon nanotubes simultaneously as a probe tip and as a bolt/nut pair which converts trans…
Cooper pairing of electrons and holes in graphene bilayer: Correlation effects
Yu. E. Lozovik, S. L. Ogarkov, A. A. Sokolik
Cooper pairing of spatially separated electrons and holes in graphene bilayer is studied beyond the mean-field approximation. Suppression of the screening at large distances, cause…