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

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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.

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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All Science Journal Classification (ASJC) codes

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

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