Doped Pr0.7-xBixSr0.3MnO3 manganite: A structural, electrical and magnetic effect

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

doi:10.1016/j.jallcom.2010.06.011

Doped Pr_0.7-xBi_xSr_0.3MnO₃ manganite: A structural, electrical and magnetic effect

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

Department of Physics, Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Structural, electrical and magnetic properties of Pr_0.7-xBi _xSr_0.3MnO₃ (x = 0.00, 0.15, 0.25) compound have been studied. A decrease in unit cell volume is observed, although Bi ³⁺ (1.17 ) ion has larger ionic radii than Pr³⁺ (1.126 ) ion and can be understood in a scenario of coexistence of charge ordered and ferromagnetic phase. "Electrical-resistivity and Magnetic" measurements show that the transition temperature (T_MI, T _C) increases i.e. "284.6 K, 276.5 K" to "294.04 K, ∼300 K" for Pr_0.70Sr_0.3MnO₃ and Pr_0.45Bi_0.25Sr_0.3MnO₃ compounds, respectively. Larger ionic size of Bi³⁺ ion encourages double-exchange (DE) interaction, which in turns result an increase in transition temperatures.

Original language	English
Pages (from-to)	L39-L41
Journal	Journal of Alloys and Compounds
Volume	504
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2010.06.011
Publication status	Published - 20-08-2010

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2010.06.011

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abstract = "Structural, electrical and magnetic properties of Pr0.7-xBi xSr0.3MnO3 (x = 0.00, 0.15, 0.25) compound have been studied. A decrease in unit cell volume is observed, although Bi 3+ (1.17 ) ion has larger ionic radii than Pr3+ (1.126 ) ion and can be understood in a scenario of coexistence of charge ordered and ferromagnetic phase. {"}Electrical-resistivity and Magnetic{"} measurements show that the transition temperature (TMI, T C) increases i.e. {"}284.6 K, 276.5 K{"} to {"}294.04 K, ∼300 K{"} for Pr0.70Sr0.3MnO3 and Pr0.45Bi0.25Sr0.3MnO3 compounds, respectively. Larger ionic size of Bi3+ ion encourages double-exchange (DE) interaction, which in turns result an increase in transition temperatures.",

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T2 - A structural, electrical and magnetic effect

AU - Kumar, Neeraj

AU - Kishan, H.

AU - Rao, A.

AU - Awana, V. P.S.

PY - 2010/8/20

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N2 - Structural, electrical and magnetic properties of Pr0.7-xBi xSr0.3MnO3 (x = 0.00, 0.15, 0.25) compound have been studied. A decrease in unit cell volume is observed, although Bi 3+ (1.17 ) ion has larger ionic radii than Pr3+ (1.126 ) ion and can be understood in a scenario of coexistence of charge ordered and ferromagnetic phase. "Electrical-resistivity and Magnetic" measurements show that the transition temperature (TMI, T C) increases i.e. "284.6 K, 276.5 K" to "294.04 K, ∼300 K" for Pr0.70Sr0.3MnO3 and Pr0.45Bi0.25Sr0.3MnO3 compounds, respectively. Larger ionic size of Bi3+ ion encourages double-exchange (DE) interaction, which in turns result an increase in transition temperatures.

AB - Structural, electrical and magnetic properties of Pr0.7-xBi xSr0.3MnO3 (x = 0.00, 0.15, 0.25) compound have been studied. A decrease in unit cell volume is observed, although Bi 3+ (1.17 ) ion has larger ionic radii than Pr3+ (1.126 ) ion and can be understood in a scenario of coexistence of charge ordered and ferromagnetic phase. "Electrical-resistivity and Magnetic" measurements show that the transition temperature (TMI, T C) increases i.e. "284.6 K, 276.5 K" to "294.04 K, ∼300 K" for Pr0.70Sr0.3MnO3 and Pr0.45Bi0.25Sr0.3MnO3 compounds, respectively. Larger ionic size of Bi3+ ion encourages double-exchange (DE) interaction, which in turns result an increase in transition temperatures.

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Doped Pr_0.7-xBi_xSr_0.3MnO₃ manganite: A structural, electrical and magnetic effect

Abstract

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