Dynamical charge density fluctuations pervading the phase diagram of a Cu-based high-Tc superconductor
- 1. Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy
- 2. Dipartimento di Fisica, Università di Roma "La Sapienza", P.le Aldo Moro 5, I-00185 Roma, Italy
- 3. Quantum Device Physics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-41296 Göteborg, Sweden
- 4. ESRF, The European Synchrotron, 71 Avenue des Martyrs, F-38043 Grenoble, France
- 5. Dipartimento di Fisica "E. Pancini", Università di Napoli Federico II, Complesso Monte Sant'Angelo, Via Cinthia, I-80126 Napoli, Italy
- 6. CNR-SPIN, Complesso Monte Sant'Angelo, Via Cinthia, I-80126 Napoli, Italy
Description
[This repository contains the raw data for the manuscript "Dynamical charge density fluctuations pervading the phase diagram of a Cu-based high-Tc superconductor" (arXiv:1809.04949)]
Charge density modulations are a common occurrence in all families of high critical temperature superconducting cuprates. Although consistently observed 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-δ and Nd1+xBa2-xCu3O7-δ for several doping levels. We discovered short-range dynamical charge density fluctuations besides the previously known quasi-critical charge density waves. They persist up to well above the pseudogap temperature T*, are characterized by energies of few meV and pervade a large area of the phase diagram, so that they can play a key role in shaping the peculiar normal-state properties of cuprates.
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Additional details
Related works
- Is supplement to
- arXiv:1809.04949 (arXiv)