52 citations · 373 across the 11 of their papers we have counts for
11 papers
Strong-coupling analysis of scanning tunneling spectra in BiSrCaCuO
C. Berthod, Y. Fasano, I. Maggio-Aprile +4
We study a series of spectra measured in the superconducting state of optimally-doped Bi-2223 by scanning tunneling spectroscopy. Each spectrum, as well as the average of spectra p…
Local quasiparticle density of states of superconducting SmFeAsOF single crystals: Evidence for spin-mediated pairing
Y. Fasano, I. Maggio-Aprile, N. D. Zhigadlo +3
We probe the local quasiparticles density-of-states in micron-sized SmFeAsOF single-crystals by means of Scanning Tunnelling Spectroscopy. Spectral features resemble…
Patterning of ultrathin YBCO nanowires using a new focused-ion-beam process
Noé Curtz, Edmond Koller, Hugo Zbinden +4
Manufacturing superconducting circuits out of ultrathin films is a challenging task when it comes to patterning complex compounds, which are likely to be deteriorated by the patter…
Imaging the essential role of spin-fluctuations in high-Tc superconductivity
N. Jenkins, Y. Fasano, C. Berthod +7
We have used scanning tunneling spectroscopy to investigate short-length electronic correlations in three-layer Bi2Sr2Ca2Cu3O(10+d) (Bi-2223). We show that the superconducting gap…
Real-space vortex glass imaging and the vortex phase diagram of SnMo6S8
A. P. Petrovic, Y. Fasano, R. Lortz +8
Using scanning tunnelling microscopy at 400mK, we have obtained maps of around 100 vortices in SnMo6S8 from 2 - 9T. The orientational and positional disorder at 5 and 9T show that…
Effect of oxygen-doping on Bi-2223 vortex matter: Crossover from electromagnetic to Josephson interlayer coupling
A. Piriou, Y. Fasano, E. Giannini +1
We study the effect of oxygen-doping on the critical temperature, Tc, the vortex matter phase diagram and the nature of the coupling mechanism between the Cu-O layers in the three-…
Preeminent role of the Van Hove singularity in the strong-coupling analysis of scanning tunneling spectroscopy for two-dimensional cuprates
Giorgio Levy de Castro, Christophe Berthod, Alexandre Piriou +2
In two dimensions the non-interacting density of states displays a Van Hove singularity (VHS) which introduces an intrinsic electron-hole asymmetry, absent in three dimensions. We…
Polaronic signature in the metallic phase of La0.7Ca0.3MnO3 films detected by scanning tunneling spectroscopy
S. Seiro, Y. Fasano, I. Maggio-Aprile +3
In this work we map tunnel conductance curves with nanometric spatial resolution, tracking polaronic quasiparticle excitations when cooling across the insulator-to-metal transition…
Studies of YBCO Strip Lines under Voltage Pulses: Optimisation of the Design of Fault Current Limiters
M. Decroux, L. Antognazza, S. Reymond +3
We present experimental results on the behaviour of a superconducting YBCO/Au meander of length L submitted to short circuit tests with constant voltage pulses. The meander, at the…
Current-induced highly dissipative domains in high Tc thin films
S. Reymond, L. Antognazza, M. Decroux +3
We have investigated the resistive response of high Tc thin films submitted to a high density of current. For this purpose, current pulses were applied into bridges made of Nd(1.15…
Experimental evidence for fast cluster formation of chain oxygen vacancies in YBa2Cu3O7-d being at the origin of the fishtail anomaly
Andreas Erb, Alfred A. Manuel, Marc Dhalle +13
We report on three different and complementary measurements, namely magnetisation measurements, positron annihilation spectroscopy and NMR measurements, which give evidence that th…