caa a22 4500 445379758 CHVBK 20180317143013.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10948-011-1157-x doi (NATIONALLICENCE)springer-10.1007/s10948-011-1157-x Improvement of Superconductivity with the Modification of Charge Reservoir Layer in (Cu0.5Tl0.5− x M x )Ba2Ca2Cu3O10− δ [Elektronische Daten] [M. Mumtaz, Nawazish Khan, Faheem Ashraf] The relatively higher electronegative elements (M= Pd, Nb, Bi, Hg) have been partially doped at Tl sites in Cu0.5Tl0.5−x M x Ba2O4−δ (x=0,0.25) charge reservoir layer of Cu0.5Tl0.5−x M x Ba2Ca2Cu3O10−δ superconductor. These elements may retain more oxygen in the charge reservoir layer due to their higher electronegativity as compared to Tl, and the higher population of oxygen in the charge reservoir layer can optimize the charge carriers' density in the conducting CuO2 planes. The optimum density of mobile charge carriers in the conducting CuO2 increases Fermi wave-vector K F and Fermi velocity v F of the carriers, which results in the improvement of superconducting properties of the material. Springer Science+Business Media, LLC, 2011 Cu0.5Tl0.5− x M x Ba2Ca2Cu3O10− δ superconductor nationallicence Electronegative nationallicence Doping nationallicence Charge reservoir layer nationallicence Mumtaz M. Materials Science Laboratory, Department of Physics, Quaid-i-Azam University, 45320, Islamabad, Pakistan aut Khan Nawazish Materials Science Laboratory, Department of Physics, Quaid-i-Azam University, 45320, Islamabad, Pakistan aut Ashraf Faheem Materials Science Laboratory, Department of Physics, Quaid-i-Azam University, 45320, Islamabad, Pakistan aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/6(2011-08-01), 1985-1989 1557-1939 24:6<1985 2011 24 10948 https://doi.org/10.1007/s10948-011-1157-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-011-1157-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mumtaz M. Materials Science Laboratory, Department of Physics, Quaid-i-Azam University, 45320, Islamabad, Pakistan aut NATIONALLICENCE 700 1- Khan Nawazish Materials Science Laboratory, Department of Physics, Quaid-i-Azam University, 45320, Islamabad, Pakistan aut NATIONALLICENCE 700 1- Ashraf Faheem Materials Science Laboratory, Department of Physics, Quaid-i-Azam University, 45320, Islamabad, Pakistan aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/6(2011-08-01), 1985-1989 1557-1939 24:6<1985 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer