publication . Article . 1994

Stabilization of the Tl2Ba2Ca2Cu3O10 superconductor by Hg doping

Alex Zettl; Y.X. Jia; C.S. Lee;
Open Access
  • Published: 01 Dec 1994 Journal: Physica C: Superconductivity, volume 234, pages 24-28 (issn: 0921-4534, Copyright policy)
  • Publisher: Elsevier BV
Abstract
Abstract Hg doping of the triple-CuO 2 layer oxide superconductor Tl 2− x Hg x Ba 2 Ca 2 Cu 3 O 10 (Tl-2223) is investigated. Modest substitution of Hg 2+ ions for Tl 3+ ions leads to the stabilization of the Tl-2223 structure and an apparently optimized superconducting onset temperature T c =130 K. The situation is reminiscent of partial Bi ions replacement by Pb ions in the lower- T c Bi based oxide superconductors. Overdoping with Hg in Tl-2223 leads again to a decrease in T c .
Subjects
free text keywords: Electrical and Electronic Engineering, Energy Engineering and Power Technology, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Superconductivity, Electrical resistivity and conductivity, Magnetic susceptibility, Oxide, chemistry.chemical_compound, chemistry, Analytical chemistry, Doping, Oxide superconductors, Transition temperature, Ion, Materials science
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