117 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Petersburg Nuclear Physics InstituteRU29 papers
- Russian Academy of SciencesRU26 papers
- Clark Atlanta UniversityUS20 papers
- Kurchatov InstituteRU13 papers
- University of OpolePL12 papers
- Hebrew University of JerusalemIL9 papers
- Institute of Biology of Komi Scientific CentreRU5 papers
- Institute of MathematicsPL4 papers
- Washington University in St. LouisUS4 papers
- Moscow Institute of Physics and TechnologyRU3 papers
- Ioffe InstituteRU2 papers
- Physico-Technical InstituteRU2 papers
26 papers · 1 filter
Universal behavior of quantum spin liquid and optical conductivity in the insulator herbertsmithite
V. R. Shaginyan, A. Z. Msezane, V. A. Stephanovich +2
We analyze optical conductivity with the goal to demonstrate experimental manifestation of a new state of matter, the so-called fermion condensate. Fermion condensates are realized…
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…
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…
Quasi-one-dimensional quantum spin liquid in the insulator
V. R. Shaginyan, V. A. Stephanovich, K. G. Popov +1
We analyze measurements of the magnetization, differential susceptibility and specific heat of quasi-one dimensional insulator Cu(CHN)(NO) (CuPzN) subjected to…
Heavy fermion spin liquid in herbertsmithite
V. R. Shaginyan, M. Ya. Amusia, A. Z. Msezane +2
We analyze recent heat capacity measurements in herbertsmithite single crystal samples subjected to strong magnetic fields. We show that the temperature depe…
Scaling behavior of the thermopower of the archetypical heavy-fermion metal
V. R. Shaginyan, A. Z. Msezane, G. S. Japaridze +3
We reveal and explain a scaling behavior of the thermopower exhibiting by the archetypical heavy-fermion (HF) metal under the application of magnetic field…
Fermion condensate generates a new state of matter by making flat bands
V. R. Shaginyan, K. G. Popov, V. A. Khodel
Belyaev's ideas associated with the condensate state in Bose interacting systems have stimulated intensive studies of the possible manifestation of such a condensation in Fermi sys…
Heat transport in magnetic fields by quantum spin liquid in the organic insulators EtMe3Sb[Pd(dmit)2]2 and κ-(BEDT-TTF)2Cu2(CN)3
V. R. Shaginyan, A. Z. Msezane, K. G. Popov +2
Measurements of the low-temperature thermal conductivity collected on insulators with geometrical frustration produce important experimental facts shedding light on the nature of q…
Discovering Strongly Correlated Quantum Spin Liquid
V. R. Shaginyan, K. G. Popov, V. A. Khodel
Strongly correlated Fermi systems are among the most intriguing and fundamental systems in physics. We show that the herbertsmithite ZnCu3(OH)6Cl2 can be viewed as a new type of st…
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…
Comment on Zeeman-Driven Lifshitz Transition: A Model for the Experimentally Observed Fermi-Surface Reconstruction in YbRh2Si2 (A. Hackl and M. Vojta, Phys. Rev. Lett. 106, 137002 (2011))
V. R. Shaginyan, M. Ya. Amusia, J. W. Clark +4
Comment on Zeeman-Driven Lifshitz Transition: A Model for the Experimentally Observed Fermi-Surface Reconstruction in YbRh2Si2 by A. Hackl and M. Vojta, Phys. Rev. Lett. 106, 13700…
Scaling in Dynamic Susceptibility of Herbertsmithite and Heavy-Fermion Metals
V. R. Shaginyan, A. Z. Msezane, K. G. Popov +1
We present a theory of the dynamic magnetic susceptibility of quantum spin liquid. The obtained results are in good agreement with experimental facts collected on herbertsmithite Z…
Challenging Magnetic Field Dependence of the Residual Resistivity of the Heavy-Fermion Metal CeCoIn5
V. R. Shaginyan, A. Z. Msezane, K. G. Popov +3
An explanation of paradoxical behavior of the residual resistivity rho_0 of the heavy-fermion metal CeCoIn5 in magnetic fields and under pressure is developed. The source of this b…
Identification of Strongly Correlated Spin Liquid in Herbertsmithite
V. R. Shaginyan, A. Z. Msezane, K. G. Popov +2
Exotic quantum spin liquid (QSL) is formed with such hypothetic particles as fermionic spinons carrying spin 1/2 and no charge. Here we calculate its thermodynamic and relaxation p…
Thermodynamic Properties of Kagome Lattice in ZnCu_3(OH)_6Cl_2 Herbertsmithite
V. R. Shaginyan, A. Z. Msezane, K. G. Popov
Strongly correlated Fermi systems are among the most intriguing and fundamental systems in physics, whose realization in some compounds is still to be discovered. We show that herb…
High magnetic fields thermodynamics of heavy fermion metal YbRh2Si2
V. R. Shaginyan, K. G. Popov, V. A. Stephanovich +2
We perform comprehensive theoretical analysis of high magnetic field behavior of the heavy-fermion (HF) compound YbRh2Si2. At low magnetic fields B, YbRh2Si2 has a quantum critical…
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…
Energy scales and the non-Fermi liquid behavior in YbRh2Si2
V. R. Shaginyan, M. Ya. Amusia, K. G. Popov +1
Multiple energy scales are detected in measurements of the thermodynamic and transport properties in heavy fermion metals. We demonstrate that the experimental data on the energy s…
Strongly correlated Fermi-systems: non-Fermi liquid behavior, quasiparticle effective mass and their interplay
V. R. Shaginyan, M. Ya. Amusia, K. G. Popov
Basing on the density functional theory of fermion condensation, we analyze the non-Fermi liquid behavior of strongly correlated Fermi-systems such as heavy-fermion metals. When de…
Energy scales and magnetoresistance at a quantum critical point
V. R. Shaginyan, M. Ya. Amusia, A. Z. Msezane +2
The magnetoresistance (MR) of CeCoIn_5 is notably different from that in many conventional metals. We show that a pronounced crossover from negative to positive MR at elevated temp…
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 …
Universal Behavior of Two-Dimensional 3He at Low Temperatures
V. R. Shaginyan, A. Z. Msezane, K. G. Popov +1
On the example of two-dimensional (2D) 3He we demonstrate that the main universal features of its experimental temperature T - density x phase diagram [see M. Neumann, J. Nyéki, J.…
Universal low-temperature behavior of the CePd_{1-x}Rh_x ferromagnet
V. R. Shaginyan, K. G. Popov, V. A. Stephanovich
The heavy-fermion metal CePd_{1-x}Rh_x evolves from ferromagnetism at x=0 to a non-magnetic state at some critical concentration x_c. Utilizing the quasiparticle picture and the co…
Universal behavior of Ferromagnet at Quantum Critical Point
V. R. Shaginyan, K. G. Popov, S. A. Artamonov
The heavy-fermion metal can be tuned from ferromagnetism at to non-magnetic state at some critical concentration . The non-Fermi liquid behavior (NF…