caa a22 4500 445380233 CHVBK 20180317143015.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10948-010-1109-x doi (NATIONALLICENCE)springer-10.1007/s10948-010-1109-x Fractal Structure Favoring Superconductivity at High Temperatures in a Stack of Membranes Near a Strain Quantum Critical Point [Elektronische Daten] [Nicola Poccia, Alessandro Ricci, Antonio Bianconi] The statistical physics of the 3D ordered oxygen interstitials has been measured in La2CuO4+y using an advanced tool, scanning x-ray diffraction with focused synchrotron radiation. The observed fractal scale invariant distribution is found in a cuprate in the proximity to a stripes critical point in the 3D Aeppli-Bianconi phase diagram of cuprates, where T c is function of both hole doping and superlattice misfit strain. Therefore high-temperature superconductivity is favored by complex fractal systems while on the contrary standard low temperature superconductivity is favored in simple periodic crystals. This work shows that the fractal structural distribution in a stack of membranes favors the macroscopic quantum coherent condensate at high temperature. This result opens new perspectives for the understanding the relationship between emergent scale-free distribution in living matter and possible quantum coherent phenomena able to resist to the attacks of temperature decoherence effects. Springer Science+Business Media, LLC, 2010 High-temperature superconductivity nationallicence Multiscale phase separation nationallicence Criticality nationallicence Scanning microdiffraction nationallicence Interstitial oxygen ions mobility nationallicence Scale-free distribution nationallicence Quantum entanglement nationallicence Poccia Nicola Department of Physics, Sapienza University of Rome, P. le A. Moro 2, 00185, Roma, Italy aut Ricci Alessandro Department of Physics, Sapienza University of Rome, P. le A. Moro 2, 00185, Roma, Italy aut Bianconi Antonio Department of Physics, Sapienza University of Rome, P. le A. Moro 2, 00185, Roma, Italy aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/3(2011-04-01), 1195-1200 1557-1939 24:3<1195 2011 24 10948 https://doi.org/10.1007/s10948-010-1109-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-1109-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Poccia Nicola Department of Physics, Sapienza University of Rome, P. le A. Moro 2, 00185, Roma, Italy aut NATIONALLICENCE 700 1- Ricci Alessandro Department of Physics, Sapienza University of Rome, P. le A. Moro 2, 00185, Roma, Italy aut NATIONALLICENCE 700 1- Bianconi Antonio Department of Physics, Sapienza University of Rome, P. le A. Moro 2, 00185, Roma, Italy aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/3(2011-04-01), 1195-1200 1557-1939 24:3<1195 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer