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- Centre National de la Recherche ScientifiqueFR316 papers
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20 papers · 2 filters
Signatures of Fermi surface reconstruction in Raman spectra of underdoped cuprates
J. P. F. Leblanc, J. P. Carbotte, E. J. Nicol
We have calculated the Raman B and B spectra as a function of temperature, as well as doping, for the underdoped cuprates, using a model based on the resonating valen…
Microwave conductivity in the ferropnictides with specific application to BaKFeAs
E. Schachinger, J. P. Carbotte
We calculate the microwave conductivity of a two band superconductor with gap symmetry. Inelastic scattering is included approximately in a BCS model augmented by a tempera…
Superconductivity Near a Quantum Critical Point in Ba(Fe,Co)2As2
K. Ahilan, F. L. Ning, T. Imai +7
We will examine the possible link between spin fluctuations and the superconducting mechanism in the iron-based high temperature superconductor Ba(Fe,Co)2As2 based on NMR and high…
Effect of pseudogap formation on the penetration depth of underdoped high cuprates
J. P. Carbotte, K. A. G. Fisher, J. P. F. LeBlanc +1
The penetration depth is calculated over the entire doping range of the cuprate phase diagram with emphasis on the underdoped regime. Pseudogap formation on approaching the Mott tr…
75As NMR study of single crystals of the heavily overdoped pnictide superconductors Ba{1-x}KxFe2As2 (x = 0.7 and 1)
S. W. Zhang, L. Ma, Y. D. Hou +6
We performed As NMR studies on two overdoped high-quality BaKFeAs (x=0.7 and 1.0) single crystals. In the normal states, we found a dramatic increase o…
Contrasting Spin Dynamics Between Underdoped and Overdoped Ba(Fe[1-x]Co[x])2As2
F. L. Ning, K. Ahilan, T. Imai +7
We report the first NMR investigation of spin dynamics in the overdoped non-superconducting regime of Ba(Fe[1-x]Co[x])2As2 up to x =0.26. We demonstrate that the absence of inter-b…