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

Research output: Contribution to journalArticle

6 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)97-105
Number of pages9
JournalJournal of Alloys and Compounds
Volume741
DOIs
Publication statusPublished - 15-04-2018

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Curie temperature
Structural properties
Magnetization
Magnetic properties
Electric properties
Thermodynamic properties
Manganites
Metal insulator transition
Thermoelectric power
Magnetic moments
Heavy ions
Superconducting transition temperature
Doping (additives)
Ions
Temperature

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

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Structural, electrical, magnetic and thermal properties of Pr0.8-xDyxSr0.2MnO3 with (x = 0, 0.2 and 0.25). / Tejaswini; Babu, P. D.; Daivajna, Mamatha D.; Thrupthi.

In: Journal of Alloys and Compounds, Vol. 741, 15.04.2018, p. 97-105.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Structural, electrical, magnetic and thermal properties of Pr0.8-xDyxSr0.2MnO3 with (x = 0, 0.2 and 0.25)

AU - Tejaswini,

AU - Babu, P. D.

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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