457 citations · 1.8k across the 58 of their papers we have counts for
58 papers
Weak-coupling theory of half-metals and other fractional metallic phases in biased doped Bernal bilayer graphene
D. V. Zhitov, A. V. Rozhkov, A. O. Sboychakov +1
The paper presents a theoretical study of many-body electronic phases in doped and electrically biased Bernal-stacked (AB) bilayer graphene. We develop a variational mean-field the…
Kohn-Luttinger like superconductivity in twisted bilayer graphene at large twist angles
A. O. Sboychakov
We predict that twisted bilayer graphene with large twist angle and small superlattice cell can be superconducting. Such a bilayer graphene can have a gap in the spectrum. This gap…
Ordered states of undoped AB bilayer graphene: bias induced cascade of transitions
A. V. Rozhkov, A. O. Sboychakov, A. L. Rakhmanov
Using mean-field theory, we determine the electronic phase diagram of undoped AB-stacked bilayer graphene in the presence of a transverse electric field. In addition to multiple co…
Anomalous superconductivity and unusual normal state properties of bilayer and twisted graphene (Brief review)
M. Yu. Kagan, M. M. Korovushkin, V. A. Mitskan +4
It has been shown that the Kohn--Luttinger superconductivity mechanism interplaying with other types of ordering can be implemented in systems with a hexagonal lattice. A number of…
Nesting-driven ferromagnetism of itinerant electrons
Ya. I. Rodionov, A. V. Rozhkov, M. E. S. Beck +3
We theoretically investigate a model with electrons and holes whose Fermi surfaces are perfectly nested. The fermions are assumed to be interacting, both with each other and with t…
High frequency permeability of the composite with ferromagnetic spherical shells
A. O. Sboychakov
The paper studies high-frequency permeability of the composite materials consisting of hollow ferromagnetic particles embedded into the non-magnetic media. We model the ferromagnet…