Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Popov, K. G."'
Publikováno v:
J. Low Temp. Phys. 191, 4 (2018)
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 in quantum spin liquids, exhibiting typical behavior of heavy fermion
Externí odkaz:
http://arxiv.org/abs/1806.07229
Autor:
Shaginyan, V. R., Stephanovich, V. A., Msezane, A. Z., Schuck, P., Clark, J. W., Amusia, M. Ya., Japaridze, G. S., Popov, K. G., Kirichenko, E. V.
Publikováno v:
J. Low Temp. Phys. 189, 410-450 (2017)
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 $\rm ^3He$ films, certain quasicrystals, and systems behaving as quantum spin liqu
Externí odkaz:
http://arxiv.org/abs/1806.03676
We show that a topological quantum phase transition, generating flat bands and altering Fermi surface topology, is a primary reason for the exotic behavior of the overdoped high-temperature superconductors represented by $\rm La_{2-x}Sr_xCuO_4$, whos
Externí odkaz:
http://arxiv.org/abs/1702.05804
Publikováno v:
Front. Phys. 11(5), 117103 (2016)
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 liquids like $\rm ^3He$, compounds with quantum spin liquids, quasicrysta
Externí odkaz:
http://arxiv.org/abs/1608.02754
Autor:
Shaginyan, V. R., Amusia, M. Ya., Clark, J. W., Japaridze, G. S., Msezane, A. Z., Popov, K. G.
Recently Han et al. have provided an analysis of the observed behavior of $\rm ZnCu_{3}(OH)_6Cl_2$ Herbertsmithite based on a separation of the contributions to its thermodynamic properties due to impurities from those due to the kagome lattice. The
Externí odkaz:
http://arxiv.org/abs/1602.03330
Publikováno v:
Phys. Rev. B 93, 205126 (2016)
Informative recent measurements on the heavy-fermion metal $\rm \beta-YbAlB_4$ performed with applied magnetic field and pressure as control parameters are analyzed with the goal of establishing a sound theoretical explanation for the inferred scalin
Externí odkaz:
http://arxiv.org/abs/1601.01182
Publikováno v:
JETP Lett. 103, 30 (2016)
We analyze measurements of the magnetization, differential susceptibility and specific heat of quasi-one dimensional insulator Cu(C$_4$H$_4$N$_2$)(NO$_3$)$_2$ (CuPzN) subjected to magnetic fields. We show that the thermodynamic properties are defined
Externí odkaz:
http://arxiv.org/abs/1510.07762
Publikováno v:
Physics Letters A 379, 2092 (2015)
We analyze recent heat capacity measurements in herbertsmithite $\rm ZnCu_3(OH)_6Cl_2$ single crystal samples subjected to strong magnetic fields. We show that the temperature dependence of specific heat $C_{mag}$ formed by quantum spin liquid at dif
Externí odkaz:
http://arxiv.org/abs/1505.08160
Publikováno v:
JETP Lett. 101, 413 (2015)
We consider a class of strongly correlated Fermi systems that exhibit an interaction-induced flat band pinned to the Fermi surface, and generalize the Landau strategy to accommodate a flat band and apply the more comprehensive theory to electron syst
Externí odkaz:
http://arxiv.org/abs/1502.05659
Autor:
Shaginyan, V. R., Msezane, A. Z., Japaridze, G. S., Popov, K. G., Clark, J. W., Khodel, V. A.
Publikováno v:
Frontiers of Physics 11, 117102 (2016)
We reveal and explain a scaling behavior of the thermopower $S/T$ exhibiting by the archetypical heavy-fermion (HF) metal $\rm{YbRh_2Si_2}$ under the application of magnetic field $B$ at temperatures $T$. We show that the same scaling is demonstrated
Externí odkaz:
http://arxiv.org/abs/1410.7299