Abstract
A new cubic perovskite, (SrLa)(MgMn)O6-x, has been prepared under the reaction conditions of high temperature (900°C) and high oxygen pressure (60 kbar). The latter condition was generated by in situ thermal decomposition of KClO3 in a belt-type apparatus. The X-ray diffraction pattern shows that Mg and Mn ions are distributed randomly in the B-site of the cubic perovskite with the lattice constants of 3.873(3) Å. Redox titration and thermogravimetric analysis were carried out to determine the average oxidation state of manganese ions, and/or the content of oxygen deficiency that was deduced as x\\cong0.38(2). Electron spin resonance spectra and magnetic susceptibility measurements indicate a weak ferromagnetic coupling due to the superexchange interaction between t2g orbital electrons of Mn(IV) and Mn(V).
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.
