Structure evolution of Yb substituted PCMO manganites

Anupama, Anita D. Souza, Mamatha D. Daivajna

Research output: Contribution to journalConference articlepeer-review

Abstract

In the present investigation, we have made an effort to synthesize and study the structure of Yb substituted Pr0.67-xYbxCa0.33MnO3(PYCMO) [x=0.0, 0.09, 0.2, 0.4 and 0.6] manganites. The tolerance factor estimated decreases while the A-site variance increases with an increase in Yb concentration. This gives an insight of the impact of Yb on the structure of the system. Detailed Rietveld analysis of the X-ray diffraction pattern suggests the structural changes to be temperature sensitive and a mixed-phase is found to evolve as the concentration of Yb increases. The parasitic secondary phase has been identified as YbMnO3(YMO) which crystallizes in hexagonal structure. A strong immiscibility of the orthorhombic and hexagonal phases has been evident from the two-phase Rietveld analysis.

Original languageEnglish
Pages (from-to)641-646
Number of pages6
JournalMaterials Today: Proceedings
Volume47
DOIs
Publication statusPublished - 2020
Event2020 Recent Advancements in Materials Science and Nanotechnology, RAMAN 2020 - Gujurat, India
Duration: 26-03-202027-03-2020

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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