Superfluid density of anisotropic S-wave superconductors by semi-classical approach: Applied to MgB2 and CaAlSi superconductors
Sign Up to like & getrecommendations! Published in 2019 at "Physica C: Superconductivity and its Applications"
DOI: 10.1016/j.physc.2019.06.005
Abstract: Abstract In this research, we investigated the superfluid density of anisotropic S-wave superconductors by Semi-classical Theory in 3D spherical Fermi surface. The anisotropic gap function was studied by ellipse spherical and pancake spherical model. The… read more here.
Keywords: caalsi superconductors; superfluid density; wave superconductors; density anisotropic ... See more keywords
Evolution of Superconducting-Transition Temperature with Superfluid Density and Conductivity in Pressurized Cuprate Superconductors
Sign Up to like & getrecommendations! Published in 2024 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/41/4/047401
Abstract: What factors fundamentally determine the value of superconducting transition temperature T c in high temperature superconductors has been the subject of intense debate. Following the establishment of an empirical law known as Homes’ law, there… read more here.
Keywords: temperature; cuprate superconductors; transition temperature; superconducting transition ... See more keywords
Disorder and superfluid density in overdoped cuprate superconductors
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.024501
Abstract: We calculate superfluid density for a dirty d-wave superconductor. The effects of impurity scattering are treated within the self-consistent t-matrix approximation, in weak-coupling BCS theory. Working from a realistic tight-binding parameterization of the Fermi surface,… read more here.
Keywords: disorder superfluid; density; density overdoped; cuprate superconductors ... See more keywords
Impact of electron-electron interactions on the superfluid density of dirty superconductors
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.184503
Abstract: Landau's theory of the Fermi liquid is adapted to analyze the impact of electron-electron ($e-e$) interactions on the deficit of the superfluid density $\rho_{s0}=\rho_s(T=0)$ in dirty superconducting electron systems in which the damping $\gamma$ of… read more here.
Keywords: impact electron; superfluid density; electron; dirty ... See more keywords
Locating the Missing Superconducting Electrons in the Overdoped Cuprates La_{2-x}Sr_{x}CuO_{4}.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.122.027003
Abstract: Overdoped high-temperature cuprate superconductors have often been understood within the standard BCS framework of superconductivity. However, measurements in a variety of overdoped cuprates indicate that the superfluid density is much smaller than expected from BCS… read more here.
Keywords: superfluid density; overdoped cuprates; missing superconducting; locating missing ... See more keywords
Influence of Nanosize Hole Defects and their Geometric Arrangements on the Superfluid Density in Atomically Thin Single Crystals of Indium Superconductor.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.127.127003
Abstract: Using Indium sqrt[7]×sqrt[3] on Si(111) as an atomically thin superconductor platform, and by systematically controlling the density of nanohole defects (nanometer size voids), we reveal the impacts of defect density and defect geometric arrangements on… read more here.
Keywords: superfluid density; defects geometric; density; superconductor ... See more keywords
Unconventional Pressure Dependence of the Superfluid Density in the Nodeless Topological Superconductor α-PdBi_{2}.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.127.217002
Abstract: We investigated the superconducting properties of the topological superconductor α-PdBi_{2} at ambient and external pressures up to 1.77 GPa using muon spin rotation experiments. The ambient pressure measurements evince a fully gapped s-wave superconducting state in… read more here.
Keywords: topological superconductor; superfluid density; superconductor pdbi; pressure ... See more keywords
Microscopic Imaging Homogeneous and Single Phase Superfluid Density in UTe_{2}.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.196003
Abstract: Odd-parity superconductor UTe_{2} shows spontaneous time-reversal symmetry breaking and multiple superconducting phases, which imply chiral superconductivity, but only in a subset of samples. Here we microscopically observe a homogeneous superfluid density n_{s} on the surface… read more here.
Keywords: imaging homogeneous; superfluid; phase; superfluid density ... See more keywords