Dynamical charge density fluctuations pervading the phase diagram of a Cu-based high-Tc superconductor

Arpaia, Riccardo,1985Chalmers tekniska högskola,Chalmers University of Technology,Politecnico di Milano,Polytechnic University of Milan (författare)

Charge density modulations have been observed in all families of high–critical temperature (Tc) superconducting cuprates. Although they are consistently found in the underdoped region of the phase diagram and at relatively low temperatures, it is still unclear to what extent they influence the unusual properties of these systems. Using resonant x-ray scattering, we carefully determined the temperature dependence of charge density modulations in YBa2Cu3O7–d and Nd1+xBa2–xCu3O7–d for several doping levels. We isolated short-range dynamical charge density fluctuations in addition to the previously known quasi-critical charge density waves. They persist up to well above the pseudogap temperature T*, are characterized by energies of a few milli–electron volts, and pervade a large area of the phase diagram.

Caprara, S.Universita degli Studi di Roma la Sapienza,Sapienza University of Rome (författare)
Fumagalli, RobertoPolitecnico di Milano,Polytechnic University of Milan (författare)
De Vecchi, G.Politecnico di Milano,Polytechnic University of Milan (författare)
Peng, Y. Y.Beijing University of Technology,Politecnico di Milano,Polytechnic University of Milan (författare)
Andersson, Eric,1992Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)ericand (författare)
Betto, DavideEuropean Synchrotron Radiation Facility (ESRF) (författare)
De Luca, G. M.Universita Degli Studi Di Napoli Federico Ii,University of Naples Federico II (författare)
Brookes, Nicholas B.European Synchrotron Radiation Facility (ESRF) (författare)
Lombardi, Floriana,1967Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)lombardi (författare)
Salluzzo, Marco (författare)
Braicovich, LucioEuropean Synchrotron Radiation Facility (ESRF),Politecnico di Milano,Polytechnic University of Milan (författare)
Di Castro, C.Universita degli Studi di Roma la Sapienza,Sapienza University of Rome (författare)
Grilli, M.Universita degli Studi di Roma la Sapienza,Sapienza University of Rome (författare)
Ghiringhelli, GiacomoPolitecnico di Milano,Polytechnic University of Milan (författare)
Chalmers tekniska högskolaPolitecnico di Milano (creator_code:org_t)

Ingår i:Science: American Association for the Advancement of Science (AAAS)365:6456, s. 906-9100036-80751095-9203

Av författaren/redakt...: Arpaia, Riccardo ...; Caprara, S.; Fumagalli, Rober ...; De Vecchi, G.; Peng, Y. Y.; Andersson, Eric, ...; visa fler...; Betto, Davide; De Luca, G. M.; Brookes, Nichola ...; Lombardi, Floria ...; Salluzzo, Marco; Braicovich, Luci ...; Di Castro, C.; Grilli, M.; Ghiringhelli, Gi ...; visa färre...

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