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7 papers · 2 filters
Localization of preformed Cooper-pairs in disordered superconductors
B. Sacepe, T. Dubouchet, C. Chapelier +5
The most profound effect of disorder on electronic systems is the localization of the electrons transforming an otherwise metallic system into an insulator. If the metal is also a…
Spatially-resolved probing of a non-equilibrium superconductor
K. Yu. Arutyunov, H. -P. Auraneva, A. S. Vasenko
Spatially resolved relaxation of non-equilibrium quasiparticles in a superconductor at ultra-low temperatures was experimentally studied. It was found that the quasiparticle inject…
Reverse-domain superconductivity in superconductor-ferromagnet hybrids: effect of a vortex-free channel on the symmetry of I-V characteristics
A. Yu. Aladyshkin, D. Yu. Vodolazov, J. Fritzsche +2
We demonstrate experimentally that the presence of a single domain wall in an underlying ferromagnetic BaFe_{12}O_{19} substrate can induce a considerable asymmetry in the current…
Strong Coupling of a Spin Ensemble to a Superconducting Resonator
Y. Kubo, F. R. Ong, P. Bertet +11
We report the realization of a quantum circuit in which an ensemble of electronic spins is coupled to a frequency tunable superconducting resonator. The spins are Nitrogen-Vacancy…
Inelastic x-ray scattering investigations of lattice dynamics in SmFeAsOF superconductors
M. Le Tacon, T. R. Forrest, Ch. Rüegg +10
We report measurements of the phonon density of states as measured with inelastic x-ray scattering in SmFeAsOF powders. An unexpected strong renormalization of phonon b…
Positive current cross-correlations in a highly transparent normal-superconducting beam splitter due to synchronized Andreev and inverse Andreev reflections
Axel Freyn, Martina Flöser, Régis Mélin
Predictions are established for linear differential current-current cross-correlations dSab/dV in a symmetrically biased three-terminal normal metal-superconductor-normal metal (NS…