2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Russian Academy of SciencesRU151 papers
- University of TrentoIT90 papers
- National Research University Higher School of EconomicsRU47 papers
- Moscow Institute of Physics and TechnologyRU45 papers
- ETH ZurichCH32 papers
- Istituto Nazionale per la Fisica della MateriaIT27 papers
- Laboratory for Solid State PhysicsCH26 papers
- Institute of PhysicsPL22 papers
- Landau Institute for Theoretical PhysicsRU20 papers
- A.V. Shubnikov Institute of CrystallographyRU17 papers
- Technion – Israel Institute of TechnologyIL16 papers
- University of AugsburgDE16 papers
78 papers · 1 filter
Fast and Slow Sound Excitations in Nematic Aerogel in superfluid 3He
A. M. Bratkovsky
Nematic aerogel (nAG) supports so-called polar phase in liquid 3He. The experiment [Dmitriev et al, JETP Lett. 112, 780 (2020)] showed that the onset of polar phase inside the nAG…
Effect of Magnetic Scattering on Superfluid Transition of 3He in Nematic Aerogel
V. V. Dmitriev, M. S. Kutuzov, A. A. Soldatov +1
We present results of high magnetic field experiments in pure He (in the absence of He coverage) in nematic aerogel. In this case the aerogel strands are covered with few a…
Splitting of the superfluid transition in He by nematic aerogels
I. A. Fomin
Role of inhomogeneous perturbations of nematic aerogel on the form of the order parameter emerging at the transition of liquid He in the superfluid state is considered. It is s…
Breaking of Ginzburg-Landau description in the temperature dependence of the anisotropy in the nematic superconductor
M. I. Bannikov, R. S. Akzyanov, N. K. Zhurbina +5
Nematic superconductors are characterized by an apparent crystal symmetry breaking that results in the anisotropy of the in-plane upper critical magnetic field . The symmet…
Superfluid He in Planar Aerogel
V. V. Dmitriev, M. S. Kutuzov, A. Y. Mikheev +3
We report results of experiments with liquid He confined in a high porosity anisotropic nanostructure which we call planar aerogel. This aerogel consists of nanofibers (with di…
Droplets of the order parameter in a low density attracting electron system in the presence of a strong random potential
M. Yu. Kagan, E. A. Mazur
The properties of a two-dimensional low density (n<<1) electron system with strong onsite Hubbard attraction U>W (W is the bandwidth) in the presence of a strong random potential V…
Fermi-Bose mixtures and BCS-BEC crossover in high-Tc superconductors
Maxim Yu Kagan, Antonio Bianconi
In this review article we consider theoretically and give experimental support to the models of the Fermi-Bose mixtures and the BCS-BEC crossover compared with the strong-coupling…
Relaxation of Nonequilibrium Quasiparticles in Mesoscopic Size Superconductors
K. Yu. Arutyunov, S. A Chernyaev, T. Karabassov +3
Rapid development of micro- and nanofabrication methods have provoked interest and enabled experimental studies of electronic properties of a vast class of (sub)micrometer-size sol…
Current-phase relation and flux-dependent thermoelectricity in Andreev interferometers
Pavel E. Dolgirev, Mikhail S. Kalenkov, Andrei D. Zaikin
We predict a novel -junction state of multi-terminal Andreev interferometers that emerges from an interplay between long-range quantum coherence and non-equilibrium effe…
Influence of Magnetic Scattering on Superfluidity of 3He in Nematic Aerogel
V. V. Dmitriev, A. A. Soldatov, A. N. Yudin
We report results of experiments with superfluid 3He confined in aerogels with parallel strands which lead to anisotropic scattering of 3He quasiparticles. We vary boundary conditi…
Local structure of ordered and disordered states of 3He-A in aerogel
E. V. Surovtsev, I. A. Fomin
Random textures of the orbital part of the order parameter of superfluid 3He-A in aerogel are analyzed theoretically in the Ginzburg and Landau region both in the presence and in t…
Unconventional superconductivity in low density electron systems and conventional superconductivity in hydrogen metallic alloys under pressure
Maxim Yu. Kagan
In a short review-article we first discuss the results, which are mainly devoted to the generalizations of the famous Kohn-Luttinger mechanism of superconductivity in purely repuls…
The quantum phase slip phenomenon in superconducting nanowires with high-impedance environment
K. Yu. Arutyunov, J. S. Lehtinen, T. Rantala
Quantum phase slip (QPS) is the particular manifestation of quantum fluctuations of the order parameter of a current-biased quasi-1D superconductor. The QPS event(s) can be conside…
Quasi-1-Dimensional Superconductivity in Highly Disordered NbN Nanowires
K. Yu. Arutyunov, A. Ramos-Álvarez, A. V. Semenov +6
The topic of superconductivity in strongly disordered materials has attracted a significant attention. In particular vivid debates are related to the subject of intrinsic spatial i…
Anomalous superconductivity and superfluidity in repulsive fermion systems
M. Yu. Kagan, V. A. Mitskan, M. M. Korovushkin
We discuss the mechanisms of unconventional superconductivity and superfluidity in 3D and 2D fermionic systems with purely repulsive interaction at low densities. We construct phas…
High-T and Low-T Superconductivity in Electron Systems With Repulsion
Maxim Yu. Kagan, Vitaly A. Mitskan, Maxim M. Korovushkin
We demonstrate the instability of the normal state of purely repulsive fermionic systems towards the transition to the Kohn-Luttinger superconducting state. We construct the superc…
Effect of the long-range Coulomb interaction on phase diagram of the Kohn-Luttinger superconducting state in idealized graphene
M. Yu. Kagan, V. A. Mitskan, M. M. Korovushkin
The effect of the long-range Coulomb interaction on the realization of the Kohn-Luttinger superconductivity in idealized monolayer doped graphene is studied. It is shown that the a…
Polar phase of superfluid 3He in anisotropic aerogel
V. V. Dmitriev, A. A. Senin, A. A. Soldatov +1
We report the observation of a new superfluid phase of 3He -- polar phase. This phase appears in 3He confined in a new type of aerogel with nearly parallel arrangement of strands w…
Deformed aerogels in the superfluid 3He
I. A. Fomin, E. V. Surovtsev
Deformed aerogels induce a global anisotropy in the superfluid 3He and orient the orbital part of its order parameter. Here a phenomenological theory of the orientational effect of…
Spin diffusion in liquid 3He confined in nafen
V. V. Dmitriev, L. A. Melnikovsky, A. A. Senin +2
We report results of spin diffusion measurements in normal phase of liquid 3He confined in nafen. Nafen is a new type of aerogel and it consists of Al2O3 strands which are nearly p…
Phase diagram of the Kohn-Luttinger superconducting state for bilayer graphene
M. Yu. Kagan, V. A. Mitskan, M. M. Korovushkin
The effect of the intersite and interplane Coulomb interactions between the Dirac fermions on the formation of the Kohn-Luttinger superconductivity in bilayer doped graphene is stu…
Kohn-Luttinger superconductivity in monolayer and bilayer semimetals with the Dirac spectrum
M. Yu. Kagan, V. A. Mitskan, M. M. Korovushkin
The effect of Coulomb interaction in an ensemble of Dirac fermions on the formation of superconducting pairing in monolayer and bilayer doped graphene is studied using the Kohn-Lut…
Comment on "Can disorder really enhance superconductivity?"
I. M. Suslov
The paper by Mayoh and Garcia-Garcia [arXiv:1412.0029v1] is entitled "Can disorder really enhance superconductivity?". In our opinion, the answer given by the authors is not satisf…
The Kohn-Luttinger effect and anomalous pairing in new superconducting systems and graphene
M. Yu. Kagan, V. V. Val'kov, V. A. Mitskan +1
We present a review of theoretical investigations into the Kohn-Luttinger nonphonon superconductivity mechanism in various 3D and 2D repulsive electron systems described by the Fer…