caa a22 4500 467884579 CHVBK 20180406152730.0 cr unu---uuuuu 170328e20060201xx s 000 0 eng 10.1007/s10948-006-0144-0 doi (NATIONALLICENCE)springer-10.1007/s10948-006-0144-0 Room Temperature Impedance and ac Conductivity Studies on Na-, K-Doped Tc-Enhanced High Tc Superconductors [Elektronische Daten] [M. Mohammad, A. Khan, M. Subhani, Sabahat Yasmeen, Shahnaz Malik, M. Nadeem] Impedance and ac conductivity studies on parent Y-Ba-Cu-O and Na-, K-doped Tc-enhanced and other superconductors indicate that either the mechanism of ac conductivity or nature of charge carriers or both in the Na-, K-doped Y-Ba-Cu-O differ from the parent Y-Ba-Cu-O and other superconductors. This is indicated by the random walk type (RWT) model curve fittings. Springer Science + Business Media, Inc., 2006 doped 1-2-3 nationallicence Tc-enhanced 1-2-3 nationallicence impedance spectroscopy nationallicence ac conductivity nationallicence RWT mechanism nationallicence Mohammad M. HEJ Research Institute of Chemistry, University of Karachi, 75270, Karachi, Pakistan aut Khan A. Allama Iqbal Open University, Islamabsad, Pakistan aut Subhani M. Chemistry Department, Quaid-e-Azam University, Islamabad, Pakistan aut Yasmeen Sabahat Hazara University, Mansehra, Pakistan aut Malik Shahnaz Hazara University, Mansehra, Pakistan aut Nadeem M. PINSTECH, Nilore, Islamabad, Pakistan aut Journal of Superconductivity and Novel Magnetism Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 19/1-2(2006-02-01), 143-149 1557-1939 19:1-2<143 2006 19 10948 https://doi.org/10.1007/s10948-006-0144-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-006-0144-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mohammad M. HEJ Research Institute of Chemistry, University of Karachi, 75270, Karachi, Pakistan aut NATIONALLICENCE 700 1- Khan A. Allama Iqbal Open University, Islamabsad, Pakistan aut NATIONALLICENCE 700 1- Subhani M. Chemistry Department, Quaid-e-Azam University, Islamabad, Pakistan aut NATIONALLICENCE 700 1- Yasmeen Sabahat Hazara University, Mansehra, Pakistan aut NATIONALLICENCE 700 1- Malik Shahnaz Hazara University, Mansehra, Pakistan aut NATIONALLICENCE 700 1- Nadeem M. PINSTECH, Nilore, Islamabad, Pakistan aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 19/1-2(2006-02-01), 143-149 1557-1939 19:1-2<143 2006 19 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer