22 citations · 22 across the 2 of their papers we have counts for
10 papers · 1 filter
Temperature dependence and resonance effects in Raman scattering of phonons in NdFeAsOF single crystals
Y. Gallais, A. Sacuto, M. Cazayous +3
We report plane-polarized Raman scattering spectra of iron oxypnictide superconductor NdFeAsOF single crystals with varying fluorine content. The spectra exhibit sh…
The nodal gap component as a good candidate for the superconducting order parameter in cuprates
W. Guyard, A. Sacuto, M. Cazayous +4
Although more than twenty years have passed since the discovery of high temperature cuprate superconductivity, the identification of the superconducting order parameter is still un…
Investigations on the relationship between and the superconducting gap under magnetic and non-magnetic impurity substitutions in YBaCuO
M. Le Tacon, A. Sacuto, Y. Gallais +2
We report electronic Raman scattering measurements on optimally doped YBa2Cu3O7 where Zn or Ni impurities have been substituted by Cu. Using Raman selection rules, we have probed t…
Evolution of the gaps through the cuprate phase-diagram
W. Guyard, M. Le Tacon, M. Cazayous +4
The actual physical origin of the gap at the antinodes, and a clear identification of the superconducting gap are fundamental open issues in the physics of high- superconducto…
Two Energy Scales and two Quasiparticle Dynamics in the Superconducting State of Underdoped Cuprates
M. Le Tacon, A. Sacuto, A. Georges +4
The superconducting state of underdoped cuprates is often described in terms of a single energy-scale, associated with the maximum of the (d-wave) gap. Here, we report on electroni…
Coupling between quasiparticles and a bosonic mode in the normal state of HgBaCuO
Y. Gallais, M. Le Tacon, A. Sacuto +1
We report a doping dependent study of the quasiparticles dynamics in HgBaCuO via Electronic Raman Scattering. A well-defined energy scale is found in the normal state d…