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

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

doi:10.1063/1.3606194

Comparative study of Bi doped Pr_0.7Sr_0.3MnO ₃ & Pr_0.6Sr_0.4MnO₃ manganite

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

Department of Physics, Manipal Institute of Technology, Manipal

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

Electrical properties of Pr_0.7-xBi_xSr _0.3MnO₃ & Pr_0.6-xBi_xSr _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 (T_MI, T_C) increase for Pr_0.7-xBi_xSr_0.3MnO₃ & decrease for Pr_0.6-xBi_xSr_0.4MnO 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 Pr_0.7-xBi _xSr_0.3MnO₃ compound. On the other hand for Pr_0.6-xBi_xSr_0.4MnO₃ 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-xBi_xSr_0.3MnO₃ compound.

Original language	English
Title of host publication	Solid State Physics - Proceedings of the 55th DAE Solid State Physics Symposium 2010
Pages	993-994
Number of pages	2
Volume	1349
Edition	PART A
DOIs	https://doi.org/10.1063/1.3606194
Publication status	Published - 12-09-2011
Event	55th DAE Solid State Physics Symposium 2010 - Manipal, India Duration: 26-12-2010 → 30-12-2010

Conference

Conference	55th DAE Solid State Physics Symposium 2010
Country/Territory	India
City	Manipal
Period	26-12-10 → 30-12-10

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Access to Document

10.1063/1.3606194

Cite this

@inproceedings{345099f2b47c4a1db2eca35680d837cb,

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

abstract = "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 {\AA}) ion has larger ionic radii than Pr 3+ (1.126 {\AA}) 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.",

author = "Neeraj Kumar and A. Rao and Awana, {V. P.S.}",

year = "2011",

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doi = "10.1063/1.3606194",

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T1 - Comparative study of Bi doped Pr0.7Sr0.3MnO 3 & Pr0.6Sr0.4MnO3 manganite

AU - Kumar, Neeraj

AU - Rao, A.

AU - Awana, V. P.S.

PY - 2011/9/12

Y1 - 2011/9/12

N2 - 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.

AB - 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.

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