Structural, electrical, magnetic and thermal properties of Pr0.8-xDyxSr0.2MnO3 with (x = 0, 0.2 and 0.25)

Tejaswini; P. D. Babu; Mamatha D. Daivajna; Thrupthi

doi:10.1016/j.jallcom.2018.01.075

Structural, electrical, magnetic and thermal properties of Pr₀._8-xDy_xSr_0.2MnO₃ with (x = 0, 0.2 and 0.25)

Tejaswini, P. D. Babu, Mamatha D. Daivajna, Thrupthi

Department of Physics, Manipal Institute of Technology, Manipal

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

11 Citations (Scopus)

Abstract

In the present work we report structural, electrical, magnetic and thermo-power of Pr_0.8-xDy_xSr_0.2MnO₃ with (x = 0, 0.2 and 0.25) manganites. It is observed that Curie temperature T_C decreases with Dy doping and also ZFC magnetization curves decrease more sharply with Dy from magnetization study. Though, Dy³⁺ ion has large magnetic moment μ = 10.65μ_B, because of its smaller ionic radius that of Pr³⁺ ion, changes in magnetic properties have observed. The zero field resistivity for pristine sample shows a small peak at around 157 K, near the metal-insulator transition temperature (T_MI), which is also closer to the Curie temperature T_C and a more pronounced peak at (T_f) around 95 K. All samples show the positive thermo-electric power throughout the temperature range.

Original language	English
Pages (from-to)	97-105
Number of pages	9
Journal	Journal of Alloys and Compounds
Volume	741
DOIs	https://doi.org/10.1016/j.jallcom.2018.01.075
Publication status	Published - 15-04-2018

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2018.01.075

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abstract = "In the present work we report structural, electrical, magnetic and thermo-power of Pr0.8-xDyxSr0.2MnO3 with (x = 0, 0.2 and 0.25) manganites. It is observed that Curie temperature TC decreases with Dy doping and also ZFC magnetization curves decrease more sharply with Dy from magnetization study. Though, Dy3+ ion has large magnetic moment μ = 10.65μB, because of its smaller ionic radius that of Pr3+ ion, changes in magnetic properties have observed. The zero field resistivity for pristine sample shows a small peak at around 157 K, near the metal-insulator transition temperature (TMI), which is also closer to the Curie temperature TC and a more pronounced peak at (Tf) around 95 K. All samples show the positive thermo-electric power throughout the temperature range.",

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AU - Daivajna, Mamatha D.

AU - Thrupthi,

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AB - In the present work we report structural, electrical, magnetic and thermo-power of Pr0.8-xDyxSr0.2MnO3 with (x = 0, 0.2 and 0.25) manganites. It is observed that Curie temperature TC decreases with Dy doping and also ZFC magnetization curves decrease more sharply with Dy from magnetization study. Though, Dy3+ ion has large magnetic moment μ = 10.65μB, because of its smaller ionic radius that of Pr3+ ion, changes in magnetic properties have observed. The zero field resistivity for pristine sample shows a small peak at around 157 K, near the metal-insulator transition temperature (TMI), which is also closer to the Curie temperature TC and a more pronounced peak at (Tf) around 95 K. All samples show the positive thermo-electric power throughout the temperature range.

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Structural, electrical, magnetic and thermal properties of Pr₀._8-xDy_xSr_0.2MnO₃ with (x = 0, 0.2 and 0.25)

Abstract

All Science Journal Classification (ASJC) codes

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