Abstract
We have studied the structural and superconducting properties of the superconductor SmSrBaCu 3O 6+ z . This compound when annealed in oxygen at 450 °C showed a tetragonal structure and a T c of 79 K. When the same sample was heated in argon followed by oxygen annealing; we observed an orthorhombic structure and an increase of T c by 6 K. Further, there was an enhancement in the shielding and the intergranular critical current. A combination of several factors such as decrease in the Cu(1)–apical oxygen distance, increase in phase purity, in hole density and chain oxygen ordering for the [AO] sample may qualitatively account for the observed data.
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.
