Abstract
Substitutions of diamagnetic Cd 2+ and Sn 4+ in YBCO and LaSCO structures have been investigated with the aim of clarifying the reported “anomalous” effects of such elements with respect to other ions with similar electronic structures on the superconductive transition of perovskites. X-ray diffraction, electrical resistivity measurements and EDX analysis were used to investigate the doping-induced structural and resistive effects and to identify secondary phases. Our results indicate that Cd and Sn have a limited solubility in LaSCO and they do not substitute in YBCO. Small Cd-induced effects on LaSCO T c are explained by assuming a Cd substitution for La, rather than for Cu. Sn, substituting for Cu up to 4 at.%, is as effective as Zn in deteriorating the resistive characteristics of LaSCO.
Sign-in/Register to access full text options 
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.
