Abstract
The perovskite-type solid solution LaSr(Ni 1− x Cu x )TaO 6 was synthesized and characterized by powder X-ray diffraction and iodometric titration. The stoichiometric solid solutions were synthesized at 1050–1100°C in air. The compounds for 0≤ x ≤0.6 have the (NH 4 ) 3 FeF 6 -type structure with ordering between (Ni 2+ , Cu 2+ ) and Ta 5+ . Tetragonal distorted (NH 4 ) 3 FeF 6 -type phases due to the Jahn-Teller effect formed in the compositional range, x ≥0.7 and the monoclinic distortion was observed for x =0.9 and 1.0. This result suggests that the tetragonal distortion occurs when the amount of Cu 2+ becomes more than 35% of the octahedral site in this system.
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.
