caa a22 4500 445380950 CHVBK 20180317143017.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0919-1 doi (NATIONALLICENCE)springer-10.1007/s10948-010-0919-1 Djurek Danijel Alessandro Volta Applied Ceramics (AVAC), Remete, Kesten brijeg 5, 10000, Zagreb, Croatia aut Ag5Pb2O6/CuO Composite, an Approach to Ambient Temperature Superconductivity [Elektronische Daten] [Danijel Djurek] Byström-Evers compound Ag5Pb2O6 is highly conducting oxide, and it was prepared from the components Ag2O and PbO2 fired in a 300 bar O2 atmosphere and 623K. Compound was milled, and particles were dispersed in a powdered CuO matrix. For low concentrations of metallic particles (<38w/w percents), the composite is semiconductor or insulator, while for concentrations >48w/w percents material is metallic down to liquid helium temperatures. For intermediate concentrations, the composite exhibits properties characteristic for superconductors with transition temperatures 178 K<T c<356 K, dependent on the size of dissolved metallic particles and their mutual distance. Magnetic data support a presumption of novel superconductivity. Samples were prepared with SC transition temperature T c=138K, and in the temperature range 145-800 K electric resistance obeys the temperature dependence ln R∼(T 0/T)1/2, and this indicates a possible 1-dimensional conduction mechanism. Springer Science+Business Media, LLC, 2010 AT c superconductivity nationallicence Landauer conductor nationallicence Anderson localization nationallicence Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 199-203 1557-1939 24:1-2<199 2011 24 10948 https://doi.org/10.1007/s10948-010-0919-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0919-1 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Djurek Danijel Alessandro Volta Applied Ceramics (AVAC), Remete, Kesten brijeg 5, 10000, Zagreb, Croatia aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 199-203 1557-1939 24:1-2<199 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer