MAGNETOTRANSPORT AND ELECTRICAL PROPERTIES OF COLOSSAL MAGNETORESISTIVE La0.8Sr0.2MnO3 AT DIFFERENT SINTERING TEMPERATURE

Authors

  • S.T. Shilan College of Engineering, Universiti Tenaga Nasional, Km 7, Jalan Kajang-Puchong, 43009 Kajang, Selangor, Malaysia Author
  • L.S. Ewe College of Engineering, Universiti Tenaga Nasional, Km 7, Jalan Kajang-Puchong, 43009 Kajang, Selangor, Malaysia Author
  • W.N. Voon College of Engineering, Universiti Tenaga Nasional, Km 7, Jalan Kajang-Puchong, 43009 Kajang, Selangor, Malaysia Author
  • K.P. Lim Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia Author

Keywords:

LSMO, manganite, resistivity

Abstract

The magnetotransport and electrical properties of La0.8Sr0.2MnO3 (LSMO) compounds prepared by simple chemical co-precipitation route and sintered at 1120oC, 1220oC and 1320oC were studied. All the samples are indexed in the rhombohedral structure with R3C space group. From this study, TIM remained nearly constant (~290K) for samples sintered at 1120oC and 1220oC. Resistivity values were fitted with several equations in the metallic (ferromagnetic) region. Whereas at insulating (paramagnetic) region, variable range hopping (VRH) and small polaron hopping (SPH) models were used to estimate the density of states at Fermi level, N (EF), and activation energy of the electron.

Downloads

Published

23-05-2026

Issue

Vol. 19 No. 1 (2011): Solid State Science and Technology

Section

Articles

License

Copyright (c) 2026 S.T. Shilan, L.S. Ewe, W.N. Voon, K.P. Lim (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.