Abstract
Abstract Bulk superconductivity up to 92 K has been achieved in the mercury-containing curprate (Tl0.5Hg0.5)Sr2(Ca1−xYx)Cu2 O7−δ when x=0.3. Based on X-ray and electron diffraction and electron probe microanalyzer results, we identify the phase responsible for the superconductivity to be similar to that of (Tl0.5Pb0.5)Sr2CaCu2O7 (so-called 1212 phase) with a space group of P4/mmm and lattice constants of a ∼ 3.8 A and c ∼ 12.0 A. Moreover, neither superlattice nor intergrowth along the a∗ and c∗ directions were observed by electron diffraction. An increase in Ca2+ doping, 0.5⩽x⩽0.3, into the Y3+ sites results in a maximum superconducting transition temperature (Tc) at around 92 K for x=0.3. For compositions x
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
