117 citations · 279 across the 21 of their papers we have counts for
21 papers
Some features of high-temperature superconductivity on flat bands
V. R. Shaginyan, A. Z. Msezane, S. A. Artamonov
In this letter, we examine how the presence of flat band leads to the formation of a high-temperature superconductor even in the case of repulsive pairing interactions. We also sho…
Comment on: "The future of the correlated electron problem", arXiv:2010.00584
V. R. Shaginyan, A. Z. Msezane
In our comment we show that some of the very difficult problems have been successfully solved. We have to focus on the resolved problems, since the authors claims: Our hope, howeve…
Scaling behavior of superconductors
V. R. Shaginyan, A. Z. Msezane, S. A. Artamonov
In our brief review, we will consider the general universal scaling properties of superconductors. The physics of superconductors, represented by both conventional and unconvention…
Common behavior of the scaled condensation energy for both high- and conventional superconductors
V. R. Shaginyan, A. Z. Msezane, S. A. Artamonov
We analyze the scaling of the condensation energy divided by , , of both conventional superconductors and unconventional high- one, where $N(…
Comment on "Shot noise in a strange metal"
V. R. Shaginyan, A. Z. Msezane, G. S. Japaridze
The recent paper (Science 382, 907 (2023)) is devoted to measurements of shot noise to probe excitations in nanowires of the heavy fermion (HF) metal . The authors…
Transport properties of strongly correlated Fermi systems
V. R. Shaginyan, A. Z. Msezane, M. V. Zverev
In our short review, we consider the transport properties of strongly correlated Fermi systems like heavy fermion metals and high- superconductors. Their transport properties…
Quantum Phase Transition in : Experimental Facts and Theory
V. R. Shaginyan, A. Z. Msezane, M. V. Zverev +1
Condensed-matter community is involved in hot debate on the nature of quantum critical points (QCP) governing the low-temperature properties of heavy fermion metals. The smeared ju…
Effect of superconductivity on the shape of flat bands
V. R. Shaginyan, A. Z. Msezane, M. Ya. Amusia +1
For the first time, basing both on experimental facts and our theoretical consideration, we show that Fermi systems with flat bands should be tuned with the superconducting state.…
Universal scaling behavior of heavy fermion compounds
V. R. Shaginyan, A. Z. Msezane, J. W. Clark +2
In our mini-review, we address manifestations of scaling behavior of heavy-fermion (HF) compounds, where and are respectively temperature and magnetic field. Using ex…
New state of matter: heavy-fermion systems, quantum spin liquids, quasicrystals, cold gases, and high temperature superconductors
V. R. Shaginyan, V. A. Stephanovich, A. Z. Msezane +6
We report on a new state of matter manifested by strongly correlated Fermi systems including various heavy-fermion (HF) metals, two-dimensional quantum liquids such as f…
Flat bands and the physics of strongly correlated Fermi systems
V. R. Shaginyan, A. Z. Msezane, V. A. Stephanovich +2
Some materials can have the dispersionless parts in their electronic spectra. These parts are usually called flat bands and generate the corps of unusual physical properties of suc…
Strongly correlated Fermi systems as a new state of matter
V. R. Shaginyan, A. Z. Msezane, G. S. Japaridze +2
The aim of this review paper is to expose a new state of matter exhibited by strongly correlated Fermi systems represented by various heavy-fermion (HF) metals, two-dimensional liq…
Flat Bands and Enigma of Metamagnetic Quantum Critical Regime in Sr3Ru2O7
V. R. Shaginyan, A. Z. Msezane, K. G. Popov +3
Understanding the nature of field-tuned metamagnetic quantum criticality in the ruthenate Sr3Ru2O7 has presented a significant challenge within condensed matter physics. It is know…
Nature of the quantum critical point as disclosed by extraordinary behavior of magnetotransport and the Lorentz number in the heavy-fermion metal YbRh2Si2
V. R. Shaginyan, A. Z. Msezane, K. G. Popov +3
Physicists are engaged in vigorous debate on the nature of the quantum critical points (QCP) governing the low-temperature properties of heavy-fermion (HF) metals. Recent experimen…
Baryon asymmetry resulting from a quantum phase transition in the early universe
V. R. Shaginyan, G. S. Japaridze, M. Ya. Amusia +2
A novel mechanism for explaining the matter-antimatter asymmetry of the universe is considered. We assume that the universe starts from completely symmetric state and then, as it c…
Scaling Behavior of Heavy Fermion Metals
V. R. Shaginyan, M. Ya. Amusia, A. Z. Msezane +1
Strongly correlated Fermi systems are fundamental systems in physics that are best studied experimentally, which until very recently have lacked theoretical explanations. This revi…
Magnetic-field-induced reentrance of Fermi-liquid behavior and spin-lattice relaxation rates in YbCu_{5-x}Au_x
V. R. Shaginyan, A. Z. Msezane, K. G. Popov +1
A strong departure from Landau-Fermi liquid (LFL) behavior have been recently revealed in observed anomalies in both the magnetic susceptibility and the muon and …
Quasiparticles and quantum phase transition in universal low-temperature properties of heavy-fermion metals
V. R. Shaginyan, A. Z. Msezane, V. A. Stephanovich +1
We demonstrate, that the main universal features of the low temperature experimental phase diagram of CeCoIn5 and other heavy-fermion metals can be well explained using Landa…
Quasiparticles and order parameter near quantum phase transition in heavy fermion metals
V. R. Shaginyan, A. Z. Msezane, M. Ya. Amusia
It is shown that the Landau paradigm based upon both the quasiparticle concept and the notion of the order parameter is valid and can be used to explain the anomalous behavior of t…
On the relation between the Hartree-Fock and Kohn-Sham approaches
M. Ya. Amusia, A. Z. Msezane, V. R. Shaginyan +1
We show that the Hartree-Fock (HF) results cannot be reproduced within the framework of Kohn-Sham (KS) theory because the single-particle densities of finite systems obtained withi…
Density Functional Theory versus the Hartree Fock Method: Comparative Assessment
M. Ya. Amusia, A. Z. Msezane, V. R. Shaginyan
We compare two different approaches to investigations of many-electron systems. The first is the Hartree-Fock (HF) method and the second is the Density Functional Theory (DFT). Ove…