170 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute of PhysicsPL32 papers
- Petersburg Nuclear Physics InstituteRU17 papers
- University of South CarolinaUS15 papers
- Clark Atlanta UniversityUS14 papers
- Institute of Chemistry, Komi Science CenterRU12 papers
- Institute of MathematicsPL10 papers
- Russian Academy of SciencesRU9 papers
- University of WrocławPL9 papers
- Jan Kochanowski UniversityPL8 papers
- Kurchatov InstituteRU8 papers
- Opole University of TechnologyPL8 papers
- Frantsevich Institute for Problems in Materials ScienceUA7 papers
18 papers · 1 filter
Thermodynamic, dynamic and transport properties of quantum spin liquid in herbertsmithite from experimental and theoretical point of view
V. R. Shaginyan, A. Z. Msezane, M. Ya. Amusia +4
In our review we focus on the quantum spin liquid, defining the thermodynamic, transport and relaxation properties of geometrically frustrated magnets (insulators) represented by h…
Fermion condensation, -linear resistivity and Planckian limit
V. R. Shaginyan, M. Ya. Amusia, A. Z. Msezane +3
We explain recent challenging experimental observations of universal scattering rate related to the linear-temperature resistivity exhibited by a large corps of both strongly corre…
Revealing quantum spin liquid in the herbertsmithite
V. R. Shaginyan, M. Ya. Amusia, J. W. Clark +5
Based on experimental data and our theoretical analysis, we provide a strategy for unambiguous establishing of gapless quantum spin liquid state (QSL) in herbertsmithite and other…
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…
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…
Two-dimensional electron gas at the LaAlO/SrTiO inteface with a potential barrier
V. A. Stephanovich, V. K. Dugaev, J. Barnaś
We present a tight binding description of electronic properties of the interface between LaAlO (LAO) and SrTiO (STO). The description assumes LAO and STO perovskites as set…
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…
Role of dimensionality in spontaneous magnon decay: easy-plane ferromagnet
V. A. Stephanovich, M. E. Zhitomirsky
We calculate magnon lifetime in an easy-plane ferromagnet on a tetragonal lattice in transverse magnetic field. At zero temperature magnons are unstable with respect to spontaneous…
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…
Spontaneous magnon decays in planar ferromagnet
V. A. Stephanovich, M. E. Zhitomirsky
We predict that spin-waves in an easy-plane ferromagnet have a finite lifetime at zero temperature due to spontaneous decays. In zero field the damping is determined by three-magno…
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…
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…
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…