skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Effect of Fe and Co doping on electrical and thermal properties of La{sub 0.5}Ce{sub 0.5}Mn{sub 1−x}(Fe, Co){sub x}O{sub 3} manganites

Abstract

Graphical abstract: - Highlights: • Low temperature resistivity minimum contributes to Coulomb and Kondo scattering. • Metallic resistivity shows electron, magnon and phonon scattering are significant. • At high temperatures small polaron conduction mechanism is viable. • Susceptibility measurements show ferromagnetic–paramagnetic transition. - Abstract: The effect of Fe and Co doping on structural, electrical and thermal properties of half doped La{sub 0.5}Ce{sub 0.5}Mn{sub 1−x}(Fe, Co){sub x}O{sub 3} is investigated. The structure of these crystallizes in to orthorhombically distorted perovskite structure. The electrical resistivity of La{sub 0.5}Ce{sub 0.5}MnO{sub 3} exhibits metal-semiconductor transition (T{sub MS} at ∼225 K). However, La{sub 0.5}Ce{sub 0.5}Mn{sub 1−x}TM{sub x}O{sub 3} (TM = Fe, Co; 0.0 ≤ x ≤ 0.1) manganites show semiconducting behavior. The thermopower measurements infer hole as charge carriers and electron–magnon as well spin wave fluctuation mechanism are effective at low temperature domain and SPC model fits the observed data at high temperature. The magnetic susceptibility measurement confirms a transition from paramagnetic to ferromagnetic phase. The observed peaks in the specific heat measurements, shifts to lower temperatures and becomes progressively broader with doping of transition metals on Mn-site. The thermal conductivity is measured in the temperature range of 10–350 K with a magnitude in betweenmore » 10 and 80 mW/cm K.« less

Authors:
 [1];  [1];  [1];  [2]
  1. Materials Science Laboratory, School of Physics, Devi Ahilya University, Khandwa Road Campus, Indore 452001 (India)
  2. Department of Physics, National Dong Hwa University, Hualien 97401, Taiwan (China)
Publication Date:
OSTI Identifier:
22285196
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 48; Journal Issue: 11; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; MAGNETIC SUSCEPTIBILITY; PEROVSKITE; SEMICONDUCTOR MATERIALS; SPECIFIC HEAT; SPIN WAVES; THERMAL CONDUCTIVITY; TRANSITION ELEMENTS; X-RAY DIFFRACTION

Citation Formats

Varshney, Dinesh, Mansuri, Irfan, Department of Physics, Indore Institute of Science and Technology, Pithampur Road, Rau, Indore 453331, Shaikh, M. W., and Kuo, Y. K. Effect of Fe and Co doping on electrical and thermal properties of La{sub 0.5}Ce{sub 0.5}Mn{sub 1−x}(Fe, Co){sub x}O{sub 3} manganites. United States: N. p., 2013. Web. doi:10.1016/J.MATERRESBULL.2013.07.062.
Varshney, Dinesh, Mansuri, Irfan, Department of Physics, Indore Institute of Science and Technology, Pithampur Road, Rau, Indore 453331, Shaikh, M. W., & Kuo, Y. K. Effect of Fe and Co doping on electrical and thermal properties of La{sub 0.5}Ce{sub 0.5}Mn{sub 1−x}(Fe, Co){sub x}O{sub 3} manganites. United States. doi:10.1016/J.MATERRESBULL.2013.07.062.
Varshney, Dinesh, Mansuri, Irfan, Department of Physics, Indore Institute of Science and Technology, Pithampur Road, Rau, Indore 453331, Shaikh, M. W., and Kuo, Y. K. Fri . "Effect of Fe and Co doping on electrical and thermal properties of La{sub 0.5}Ce{sub 0.5}Mn{sub 1−x}(Fe, Co){sub x}O{sub 3} manganites". United States. doi:10.1016/J.MATERRESBULL.2013.07.062.
@article{osti_22285196,
title = {Effect of Fe and Co doping on electrical and thermal properties of La{sub 0.5}Ce{sub 0.5}Mn{sub 1−x}(Fe, Co){sub x}O{sub 3} manganites},
author = {Varshney, Dinesh and Mansuri, Irfan and Department of Physics, Indore Institute of Science and Technology, Pithampur Road, Rau, Indore 453331 and Shaikh, M. W. and Kuo, Y. K.},
abstractNote = {Graphical abstract: - Highlights: • Low temperature resistivity minimum contributes to Coulomb and Kondo scattering. • Metallic resistivity shows electron, magnon and phonon scattering are significant. • At high temperatures small polaron conduction mechanism is viable. • Susceptibility measurements show ferromagnetic–paramagnetic transition. - Abstract: The effect of Fe and Co doping on structural, electrical and thermal properties of half doped La{sub 0.5}Ce{sub 0.5}Mn{sub 1−x}(Fe, Co){sub x}O{sub 3} is investigated. The structure of these crystallizes in to orthorhombically distorted perovskite structure. The electrical resistivity of La{sub 0.5}Ce{sub 0.5}MnO{sub 3} exhibits metal-semiconductor transition (T{sub MS} at ∼225 K). However, La{sub 0.5}Ce{sub 0.5}Mn{sub 1−x}TM{sub x}O{sub 3} (TM = Fe, Co; 0.0 ≤ x ≤ 0.1) manganites show semiconducting behavior. The thermopower measurements infer hole as charge carriers and electron–magnon as well spin wave fluctuation mechanism are effective at low temperature domain and SPC model fits the observed data at high temperature. The magnetic susceptibility measurement confirms a transition from paramagnetic to ferromagnetic phase. The observed peaks in the specific heat measurements, shifts to lower temperatures and becomes progressively broader with doping of transition metals on Mn-site. The thermal conductivity is measured in the temperature range of 10–350 K with a magnitude in between 10 and 80 mW/cm K.},
doi = {10.1016/J.MATERRESBULL.2013.07.062},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 48,
place = {United States},
year = {2013},
month = {11}
}