35 citations · 88 across the 11 of their papers we have counts for
9 papers · 1 filter
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…
Ultra spin liquid in
V. R. Shaginyan, A. Z. Msezane, S. A. Artamonov +2
We analyze measurements of , specific heat divided by temperature , of the recently observed ultra spin liquid. The measurements are carried out in…
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…
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…
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…
Hall coefficient in heavy fermion metals
V. R. Shaginyan, K. G. Popov, S. A. Artamonov
Experimental studies of the antiferromagnetic (AF) heavy fermion metal in a magnetic field indicate the presence of a jump in the Hall coefficient at a magneti…
Theory of high-T_c superconductivity based on the fermion-condensation quantum phase transition
M. Ya. Amusia, S. A. Artamonov, V. R. Shaginyan
A theory of high temperature superconductivity based on the combination of the fermion-condensation quantum phase transition and the conventional theory of superconductivity is pre…
Quasiparticles in a strongly correlated liquid with the fermion condensate: applications to high-temperature superconductors
S. A. Artamonov, V. R. Shaginyan
A model of a strongly correlated electron liquid based on the fermion condensation (FC) is extended to high-temperature superconductors. Within our model, the appearance of FC pres…
Ground state instability in systems of strongly interacting fermions
S. A. Artamonov, Yu. G. Pogorelov, V. R. Shaginyan
We analyze stability of a fermion system with model repulsive pair interaction potential. The possibility for different types of restructuring of the Fermi ground state (at suffici…