Comparative study of Bi doped Pr0.7Sr0.3MnO 3 & Pr0.6Sr0.4MnO3 manganite

Neeraj Kumar, A. Rao, V. P.S. Awana

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)


Electrical properties of Pr0.7-xBixSr 0.3MnO3 & Pr0.6-xBixSr 0.4MnO3 (x=0.00, 0.10, 0.20) compound have been studied. Based on regular shift in XRD spectra, decrease in unit cell volume is observed. Although Bi3+ (1.17 Å) ion has larger ionic radii than Pr 3+ (1.126 Å) ion and can be understood in a scenario of coexistence of charge-ordered and ferromagnetic phase. Electrical-resistivity measurements show that transition temperature (TMI, TC) increase for Pr0.7-xBixSr0.3MnO3 & decrease for Pr0.6-xBixSr0.4MnO 3 compounds in contradictory. Larger ionic size of Bi3+ ion dominates and encourages double-exchange (DE) interaction which in turns result an increase in transition temperature for Pr0.7-xBi xSr0.3MnO3 compound. On the other hand for Pr0.6-xBixSr0.4MnO3 compound, the present results can be understood in a scenario of strong hybridization between Bi(6s2) and O(2p) orbital and effect in opposite sense as in Pr 0.7-xBixSr0.3MnO3 compound.

Original languageEnglish
Title of host publicationSolid State Physics - Proceedings of the 55th DAE Solid State Physics Symposium 2010
Number of pages2
EditionPART A
Publication statusPublished - 12-09-2011
Event55th DAE Solid State Physics Symposium 2010 - Manipal, India
Duration: 26-12-201030-12-2010


Conference55th DAE Solid State Physics Symposium 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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