Zobrazeno 1 - 10
of 560
pro vyhledávání: '"Hlubina, P."'
Autor:
Herman, František, Hlubina, Richard
The size of the Cooper pair $\xi_{\rm pair}$ is one of the basic characteristics of a superconductor, but it is not possible to measure it directly. It might be argued that $\xi_{\rm pair}$ can be determined from the value $\xi_{\rm slope}$ extracted
Externí odkaz:
http://arxiv.org/abs/2310.06220
The gap function $\Delta(\omega)$ carries essential information on both, the pairing glue as well as the pair-breaking processes in a superconductor. Unfortunately, in nearly localized superconductors with a non-constant density of states in the norm
Externí odkaz:
http://arxiv.org/abs/2112.09731
Publikováno v:
In Optics and Laser Technology December 2023 167
Autor:
Neilinger, P., Greguš, J., Manca, D., Grančič, B., Kopčík, M., Szabó, P., Samuely, P., Hlubina, R., Grajcar, M.
Publikováno v:
Phys. Rev. B 100, 241106 (2019)
It is well known that conductivity of disordered metals is suppressed in the limit of low frequencies and temperatures by quantum corrections. Although predicted by theory to exist up to much higher energies, such corrections have so far been experim
Externí odkaz:
http://arxiv.org/abs/1908.09907
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Autor:
Rabatin, Branislav, Hlubina, Richard
Making use of generalized Eliashberg equations, we describe the Altshuler-Aronov (AA) effect and superconductivity on equal footing. We derive explicit expressions for the Coulomb pseudopotential in 3D, taking into account also the anomalous diffusio
Externí odkaz:
http://arxiv.org/abs/1811.06467
Autor:
Markos, Peter, Hlubina, Richard
Publikováno v:
Physics Letters A 380 (2016) 811
Recently it has been found numerically that the spectra of metamaterial crystals may contain pairs of bands which disappear inside the Brillouin zone. We observe that the wave equations for such systems are essentially non-Hermitian, but PT -symmetri
Externí odkaz:
http://arxiv.org/abs/1710.09094
Autor:
Herman, Frantisek, Hlubina, Richard
Publikováno v:
Phys. Rev. B 97, 014517 (2018)
The tunneling density of states in dirty superconductors is often well described by the phenomenological Dynes formula. Recently we have shown that this formula can be derived, within the coherent potential approximation, for superconductors with sim
Externí odkaz:
http://arxiv.org/abs/1710.03465
Autor:
Herman, František, Hlubina, Richard
Publikováno v:
Phys. Rev. B 96, 014509 (2017)
Recently a generic model has been proposed for the single-particle properties of gapless superconductors with simultaneously present pair-conserving and pair-breaking impurity scattering (the so-called Dynes superconductors). Here we calculate the op
Externí odkaz:
http://arxiv.org/abs/1705.04674
Autor:
Herman, František, Hlubina, Richard
Publikováno v:
Phys. Rev. B 95, 094514 (2017)
Recently it has been found that models with at least two lifetimes have to be considered when analyzing the angle resolved photoemission data in the nodal region of the cuprates [T. Kondo et al., Nat. Commun. 6, 7699 (2015)]. In this paper we compare
Externí odkaz:
http://arxiv.org/abs/1701.04430