Magneto Transport Anomaly of Bismuth Substituted (La, Na) MnO3

Lozil Denzil Mendonca, Anita D’Souza, M. S. Murari, Mamatha D. Daivajna

Research output: Contribution to journalArticle

Abstract

The structural and magneto-transport properties of polycrystalline La0.85–xBixNa0.15MnO3, (x = 0, 0.05, 0.1, 0.2) manganites are reported. The polycrystalline samples were prepared using solid-state synthesis route. Rietveld refinement of X-ray data conclude the samples crystallized in a rhombohedrally distorted structure belonging to R3 ¯ C space group with no prominent structural changes upon bismuth substitution. Scanning electron microscopy has revealed improvement of microstructure from loosely bound system to densely packed array of grain. Resistivity measurements disclose metal–insulator transition for all the samples. A double metal–insulator transition is observed in samples with low concentrations (x = 0.05, 0.1). All samples have shown second-order magnetic phase transition.

Original languageEnglish
JournalJournal of Superconductivity and Novel Magnetism
DOIs
Publication statusAccepted/In press - 01-01-2020

Fingerprint

Manganites
Bismuth
Rietveld refinement
Transport properties
bismuth
Substitution reactions
Phase transitions
anomalies
X rays
Microstructure
Scanning electron microscopy
low concentrations
transport properties
routes
substitutes
solid state
microstructure
electrical resistivity
scanning electron microscopy
synthesis

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

@article{1a2a61d0429d4de3a4798ed0d2aec0e1,
title = "Magneto Transport Anomaly of Bismuth Substituted (La, Na) MnO3",
abstract = "The structural and magneto-transport properties of polycrystalline La0.85–xBixNa0.15MnO3, (x = 0, 0.05, 0.1, 0.2) manganites are reported. The polycrystalline samples were prepared using solid-state synthesis route. Rietveld refinement of X-ray data conclude the samples crystallized in a rhombohedrally distorted structure belonging to R3 ¯ C space group with no prominent structural changes upon bismuth substitution. Scanning electron microscopy has revealed improvement of microstructure from loosely bound system to densely packed array of grain. Resistivity measurements disclose metal–insulator transition for all the samples. A double metal–insulator transition is observed in samples with low concentrations (x = 0.05, 0.1). All samples have shown second-order magnetic phase transition.",
author = "Mendonca, {Lozil Denzil} and Anita D’Souza and Murari, {M. S.} and Daivajna, {Mamatha D.}",
year = "2020",
month = "1",
day = "1",
doi = "10.1007/s10948-020-05430-4",
language = "English",
journal = "Journal of Superconductivity and Novel Magnetism",
issn = "1557-1939",
publisher = "Springer New York",

}

Magneto Transport Anomaly of Bismuth Substituted (La, Na) MnO3. / Mendonca, Lozil Denzil; D’Souza, Anita; Murari, M. S.; Daivajna, Mamatha D.

In: Journal of Superconductivity and Novel Magnetism, 01.01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Magneto Transport Anomaly of Bismuth Substituted (La, Na) MnO3

AU - Mendonca, Lozil Denzil

AU - D’Souza, Anita

AU - Murari, M. S.

AU - Daivajna, Mamatha D.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - The structural and magneto-transport properties of polycrystalline La0.85–xBixNa0.15MnO3, (x = 0, 0.05, 0.1, 0.2) manganites are reported. The polycrystalline samples were prepared using solid-state synthesis route. Rietveld refinement of X-ray data conclude the samples crystallized in a rhombohedrally distorted structure belonging to R3 ¯ C space group with no prominent structural changes upon bismuth substitution. Scanning electron microscopy has revealed improvement of microstructure from loosely bound system to densely packed array of grain. Resistivity measurements disclose metal–insulator transition for all the samples. A double metal–insulator transition is observed in samples with low concentrations (x = 0.05, 0.1). All samples have shown second-order magnetic phase transition.

AB - The structural and magneto-transport properties of polycrystalline La0.85–xBixNa0.15MnO3, (x = 0, 0.05, 0.1, 0.2) manganites are reported. The polycrystalline samples were prepared using solid-state synthesis route. Rietveld refinement of X-ray data conclude the samples crystallized in a rhombohedrally distorted structure belonging to R3 ¯ C space group with no prominent structural changes upon bismuth substitution. Scanning electron microscopy has revealed improvement of microstructure from loosely bound system to densely packed array of grain. Resistivity measurements disclose metal–insulator transition for all the samples. A double metal–insulator transition is observed in samples with low concentrations (x = 0.05, 0.1). All samples have shown second-order magnetic phase transition.

UR - http://www.scopus.com/inward/record.url?scp=85078817330&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85078817330&partnerID=8YFLogxK

U2 - 10.1007/s10948-020-05430-4

DO - 10.1007/s10948-020-05430-4

M3 - Article

AN - SCOPUS:85078817330

JO - Journal of Superconductivity and Novel Magnetism

JF - Journal of Superconductivity and Novel Magnetism

SN - 1557-1939

ER -