Structural, electrical, magnetic and thermal properties of Gd1-xSrxMnO3 (0.2≤x≤0.5) manganites

Nagaraja B.s, Ashok Rao, P. D. Babu, G. S. Okram

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A systematic study on structural, electrical, magnetic and thermoelectric properties of bulk samples of Gd1-xSrxMnO3, synthesized by solid state reaction, is carried out in this communication. All the samples are in single phase with no detectable impurities. All the samples exhibit insulating behavior and the results indicate that high temperature electrical resistivity can be explained using small polaron hopping (SPH) model, whereas variable hopping model (VRH) model is valid in the low temperature regime. The magnetization results show that large irreversible magnetization is observed at low temperatures. The thermoelectric power measurement demonstrates that these samples exhibit colossal thermoelectric power.

Original languageEnglish
Pages (from-to)10-20
Number of pages11
JournalPhysica B: Condensed Matter
Volume479
DOIs
Publication statusPublished - 15-12-2015

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Manganites
Structural properties
Magnetic properties
Electric properties
Thermodynamic properties
thermodynamic properties
electrical properties
Thermoelectric power
magnetic properties
Magnetization
Gene Conversion
Solid state reactions
Temperature
magnetization
Impurities
communication
Communication
solid state
impurities
electrical resistivity

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

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Structural, electrical, magnetic and thermal properties of Gd1-xSrxMnO3 (0.2≤x≤0.5) manganites. / B.s, Nagaraja; Rao, Ashok; Babu, P. D.; Okram, G. S.

In: Physica B: Condensed Matter, Vol. 479, 15.12.2015, p. 10-20.

Research output: Contribution to journalArticle

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AU - B.s, Nagaraja

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AU - Okram, G. S.

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