Affiliation:
1. Texas Center for Superconductivity, University of Houston, Houston, Texas 77204–5932, USA
Abstract
Samples with a nominal composition of Hg 1−x Pb x Ba 2 Ca 2 Cu 3 O 8+δ (x~0.1, 0.2, and 0.3) have been synthesized and characterized. The Pb-doping promotes the formation of the three CuO2-layer compound Hg 1−x Pb x Ba 2 Ca 2 Cu 3 O 8+δ, and reduces the release of Hg vapor at the synthesis temperature. The intergrain electric coupling is also significantly enhanced by the doping, resulting in lower normal-state resistivity and higher intergrain critical current density. The carrier concentration of the as-synthesized samples increases with the increase of x, ranging from underdoped (x~0) to overdoped (x≥0.2).
Publisher
World Scientific Pub Co Pte Lt
Subject
Condensed Matter Physics,Statistical and Nonlinear Physics
Cited by
17 articles.
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1. Effects of Y doping on the (Hg,Re)-1212 superconductor properties;Physica C: Superconductivity;2007-09
2. Synthesis of High-Tc Superconductor Hg0.8M0.2Ba2Ca2Cu3Oy (M=V, Cr, Mn, Mo, Ag, In, Sn, W, Re, Pb, Hf, Ta) by Quartz-Tube Encapsulation Technique;Journal of the Ceramic Society of Japan;2005
3. Rhenium effect in the formation and stability of HgCaO2 and Hg1−xRexBa2Ca2Cu3O8+δ superconductor;Physica C: Superconductivity;2001-07
4. CRYSTAL STRUCTURE DATA ON A NEW CUBIC PHASE ACTING AS ANTAGONIST IN THE SYNTHESIS OF Hg(Re)-1223 SUPERCONDUCTOR;International Journal of Modern Physics B;2000-10-30
5. A new Cu-free cubic phase as competitor in the synthesis of Hg(Re)-1223 superconductor;Solid State Communications;2000-09