19 citations · 99 across the 13 of their papers we have counts for
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Probing the Lattice Anharmonicity of Superconducting YBaCuO Via Phonon Harmonics
Alberto Ramos-Alvarez, Nina Fleischmann, Luciana Vidas +3
We examine coherent phonons in a strongly driven sample of optimally-doped high temperature superconductor YBaCuO. We observe a non-linear lattice response of the 4…
The conductivity and the magnetization around Tc in optimally-doped YBaCuO revisited: quantitative analysis in terms of fluctuating superconducting pairs
R. I. Rey, C. Carballeira, J. M. Doval +7
We first present detailed measurements of the rounding behavior around the superconducting transition temperature, , of the in-plane electrical conductivity, magnetoconductivi…
Quasi-1-Dimensional Superconductivity in Highly Disordered NbN Nanowires
K. Yu. Arutyunov, A. Ramos-Álvarez, A. V. Semenov +6
The topic of superconductivity in strongly disordered materials has attracted a significant attention. In particular vivid debates are related to the subject of intrinsic spatial i…
Superconducting fluctuations in isovalently-substituted BaFe(AsP): Possible observation of multiband effects
A. Ramos-Álvarez, J. Mosqueira, F. Vidal +4
The nature of superconducting fluctuation effects in the isovalently-substituted iron pnictide BaFe(AsP) (x=0.35) is probed through measurements of the magnetiz…
Magnetic field dependence of the precursor diamagnetism in La superconductors with magnetic Pr impurities
F. Soto, C. Carballeira, J. M. Doval +6
The interplay between fluctuating Cooper pairs and magnetic impurities in conventional BCS low-Tc superconductors has been studied through measurements of the magnetic field depend…
Large increase of the anisotropy factor in the overdoped region of Ba(FeNi)As as probed by fluctuation spectroscopy
A Ramos-Álvarez, J Mosqueira, F Vidal +2
We study the diamagnetism induced by thermal fluctuations above the superconducting transition of the iron pnictide Ba(FeNi)As with different doping levels. The…
Comment on "Multiorbital Effects on the Transport and the Superconducting Fluctuations in LiFeAs"
A. Ramos-Álvarez, J. Mosqueira, F. Vidal
In the commented work (PRL 109, 187005 (2012)), Rullier-Albenque et al. present measurements of transverse magnetoresistivity above the transition temperature Tc in clean LiFeAs. B…
Measurements of the superconducting fluctuations in optimally-doped BaFeNiAs under high magnetic fields: Probing the 3D anisotropic Ginzburg-Landau approach
R. I. Rey, A. Ramos-Álvarez, C. Carballeira +6
The superconducting fluctuations well inside the normal state of Fe-based superconductors were experimentally studied through the in-plane paraconductivity in several high-quality…
Direct measurement of the temperature dependence of the magnetic penetration depth in Ba(FeNi)As superconductors
R. I. Rey, A. Ramos-Álvarez, J. Mosqueira +6
The temperature dependence of the in-plane magnetic penetration depth of Ba(FeNi)As single crystals is determined directly from the shielding magnetic…
Angular dependence of the fluctuation magnetization vector above the superconducting transition of a highly anisotropic high-Tc cuprate
R. I. Rey, J. Mosqueira, N. Cotón +6
In highly anisotropic cuprate superconductors it is generally accepted that the reversible magnetization vector, M, is essentially perpendicular to the superconducting CuO2 layers…
New results on the anomalous precursor diamagnetism in the underdoped La1.9Sr0.1CuO4 superconductor
J. D. Dancausa, N. Cotón, J. M. Doval +5
The new results summarized here, including a brief comparison with the paraconductivity, further suggest that the anomalous precursor (above Tc) diamagnetism recently observed in t…
Precursor superconducting diamagnetism in YBa2Cu3O7-d with in-plane or intercalated magnetic impurities
F. Soto, N. Cotón, J. D. Dancausa +8
The magnetization around the superconducting transition was measured in YBa2Cu3O7-d with magnetic impurities in the CuO2 layers (Cu substituted by Zn or Ni) or between them (Y subs…
Comment on 'Diamagnetism and Cooper pairing above Tc in cuprates'
R. I. Rey, A. Ramos-Álvarez, J. Mosqueira +2
It is shown that the magnetization rounding measured by L. Li and coworkers above the superconducting transition in optimally doped YBa2Cu3O7-d crystals under magnetic fields up to…