Abstract
The substitution of Fe for Cu stabilizes the structure of Ba 2InCuO 4 + y and an order-to-disorder structural transformation is observed upon varying the preparation conditions. This variation occurs either by heating the ordered phase at higher temperature in air or by heating it in Ar atmosphere during thermogravimetry experiments. Mössbauer spectroscopy revealed that, for the ordered sample, Fe is probably in a “distorted” tetrahedral coordination and shares with Cu the middle plane. In the disordered sample, due to cation disorder, there are two more sites: one corresponding to Fe 3+ and one to Fe 4+. The picture that emerges from the Mössbauer data mimics the observed behavior of iron-substituted Cu(1) sites of the 123 compound.
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.
