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Structural and electrical transport of Lа₁₋ₓCaₓMnO₃ with substitution x=0.00, 0.50 and 1.00 / Kamariah Noor Ab Kahar

The effect of calcium (Ca) substitution on the CMR properties of La i-x Ca x MnC>3 (LCMO) was systematically studied. Samples were synthesized using a standard solid state reaction technique by substituting concentration Ca up to 100%. The micro structure for samples 0%, 50% and 100% was characte...

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Main Author: Ab Kahar, Kamariah Noor
Format: Student Project
Language:English
Published: 2009
Subjects:
Structural engineering
Structural analysis. Theory of structures
Online Access:https://ir.uitm.edu.my/id/eprint/44018/1/44018.pdf
https://ir.uitm.edu.my/id/eprint/44018/
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spelling my.uitm.ir.440182022-11-23T08:46:53Z https://ir.uitm.edu.my/id/eprint/44018/ Structural and electrical transport of Lа₁₋ₓCaₓMnO₃ with substitution x=0.00, 0.50 and 1.00 / Kamariah Noor Ab Kahar Ab Kahar, Kamariah Noor Structural engineering Structural analysis. Theory of structures The effect of calcium (Ca) substitution on the CMR properties of La i-x Ca x MnC>3 (LCMO) was systematically studied. Samples were synthesized using a standard solid state reaction technique by substituting concentration Ca up to 100%. The micro structure for samples 0%, 50% and 100% was characterized by Scanning Electron Microscope (SEM) using LEO 14551 VPSEM Gemini Scanning Electron Microscope. The micro structure were found are change which the grain size little bit more large as increase the substitution of concentration of Ca. With the increase of concentration Ca substitution, the phase transition temperature determined by standard four-probe method measurement increased to 290K for x=0.50, then dropped sharply with higher Ca concentration because the change in double exchange mechanism (DE) and Jahn-Teller distortion (JT). Results are discussed in the relation with decreasing with as an amount of the Ca substituted. The values of resistivity are increase in the LCMO with higher-level concentration (x> 50%) in the substitution of Ca substituted to the samples. 2009 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/44018/1/44018.pdf Structural and electrical transport of Lа₁₋ₓCaₓMnO₃ with substitution x=0.00, 0.50 and 1.00 / Kamariah Noor Ab Kahar. (2009) [Student Project] (Unpublished)
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Structural engineering
Structural analysis. Theory of structures
spellingShingle Structural engineering
Structural analysis. Theory of structures
Ab Kahar, Kamariah Noor
Structural and electrical transport of Lа₁₋ₓCaₓMnO₃ with substitution x=0.00, 0.50 and 1.00 / Kamariah Noor Ab Kahar
description The effect of calcium (Ca) substitution on the CMR properties of La i-x Ca x MnC>3 (LCMO) was systematically studied. Samples were synthesized using a standard solid state reaction technique by substituting concentration Ca up to 100%. The micro structure for samples 0%, 50% and 100% was characterized by Scanning Electron Microscope (SEM) using LEO 14551 VPSEM Gemini Scanning Electron Microscope. The micro structure were found are change which the grain size little bit more large as increase the substitution of concentration of Ca. With the increase of concentration Ca substitution, the phase transition temperature determined by standard four-probe method measurement increased to 290K for x=0.50, then dropped sharply with higher Ca concentration because the change in double exchange mechanism (DE) and Jahn-Teller distortion (JT). Results are discussed in the relation with decreasing with as an amount of the Ca substituted. The values of resistivity are increase in the LCMO with higher-level concentration (x> 50%) in the substitution of Ca substituted to the samples.
format Student Project
author Ab Kahar, Kamariah Noor
author_facet Ab Kahar, Kamariah Noor
author_sort Ab Kahar, Kamariah Noor
title Structural and electrical transport of Lа₁₋ₓCaₓMnO₃ with substitution x=0.00, 0.50 and 1.00 / Kamariah Noor Ab Kahar
title_short Structural and electrical transport of Lа₁₋ₓCaₓMnO₃ with substitution x=0.00, 0.50 and 1.00 / Kamariah Noor Ab Kahar
title_full Structural and electrical transport of Lа₁₋ₓCaₓMnO₃ with substitution x=0.00, 0.50 and 1.00 / Kamariah Noor Ab Kahar
title_fullStr Structural and electrical transport of Lа₁₋ₓCaₓMnO₃ with substitution x=0.00, 0.50 and 1.00 / Kamariah Noor Ab Kahar
title_full_unstemmed Structural and electrical transport of Lа₁₋ₓCaₓMnO₃ with substitution x=0.00, 0.50 and 1.00 / Kamariah Noor Ab Kahar
title_sort structural and electrical transport of lа₁₋ₓcaₓmno₃ with substitution x=0.00, 0.50 and 1.00 / kamariah noor ab kahar
publishDate 2009
url https://ir.uitm.edu.my/id/eprint/44018/1/44018.pdf
https://ir.uitm.edu.my/id/eprint/44018/
_version_ 1751539800963284992
score 13.211869

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