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The effects of electrical transport properties on microstructure of (Lai.xBix)o.7Ago.3Mn03 ceramics. / Siti Munirah Md Razak

A detailed investigation of electrical transport properties on monovalent atom of silver (Ag) and bismuth atoms (Bi) doped polycrystalline of (Lai.xBix)o.7Ago.3Mn03 pellets. The sample of (Lai.xBix)o.7Ago.3Mn03 known as colossal Magnetoresistance (CMR). The sample of (Lai.xBix)o.7Ag0.3Mn03 with comp...

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Main Author: Md Razak, Siti Munirah
Format: Student Project
Language:English
Published: 2011
Subjects:
Composite materials
Electricity
Online Access:https://ir.uitm.edu.my/id/eprint/46500/1/46500.pdf
https://ir.uitm.edu.my/id/eprint/46500/
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spelling my.uitm.ir.465002022-12-14T03:20:05Z https://ir.uitm.edu.my/id/eprint/46500/ The effects of electrical transport properties on microstructure of (Lai.xBix)o.7Ago.3Mn03 ceramics. / Siti Munirah Md Razak Md Razak, Siti Munirah Composite materials Electricity A detailed investigation of electrical transport properties on monovalent atom of silver (Ag) and bismuth atoms (Bi) doped polycrystalline of (Lai.xBix)o.7Ago.3Mn03 pellets. The sample of (Lai.xBix)o.7Ago.3Mn03 known as colossal Magnetoresistance (CMR). The sample of (Lai.xBix)o.7Ag0.3Mn03 with composition of x = 0.00, 0.10, 0.15, 0.20 were prepared by conventional solid state reaction method. The scanning electron microscope (SEM) used to determine the surface morphologies for the samples, X-ray diffractometer (XRD) to analyze the structure of the samples and the resistivity and metal-insulator transition temperature (TMI) measurement was determined by using Standard four point probe. The grains sizes of the samples become larger and softer with increasing the Bi3+ doping of x. The samples also identified as a rhombohedral structure with space group R3c. For the electrical transport properties, the resistivity is increased while the TMI is decreased when the composition of x is increased. From the graph of intensity (a.u) versus 29 (deg) curves of (Lai.xBix)0.7Ago.3Mn03 with x=0.00,0.10, 0.10 and 0.20, the two peaks below and above the metal-insulator transition temperature were found. The peak below the TMi is the metallic region and double exchange (DE) mechanism plays on it while above TMI, it is known as insulator region and the Jahn Taller mechanism plays on it. 2011 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/46500/1/46500.pdf The effects of electrical transport properties on microstructure of (Lai.xBix)o.7Ago.3Mn03 ceramics. / Siti Munirah Md Razak. (2011) [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 Composite materials
Electricity
spellingShingle Composite materials
Electricity
Md Razak, Siti Munirah
The effects of electrical transport properties on microstructure of (Lai.xBix)o.7Ago.3Mn03 ceramics. / Siti Munirah Md Razak
description A detailed investigation of electrical transport properties on monovalent atom of silver (Ag) and bismuth atoms (Bi) doped polycrystalline of (Lai.xBix)o.7Ago.3Mn03 pellets. The sample of (Lai.xBix)o.7Ago.3Mn03 known as colossal Magnetoresistance (CMR). The sample of (Lai.xBix)o.7Ag0.3Mn03 with composition of x = 0.00, 0.10, 0.15, 0.20 were prepared by conventional solid state reaction method. The scanning electron microscope (SEM) used to determine the surface morphologies for the samples, X-ray diffractometer (XRD) to analyze the structure of the samples and the resistivity and metal-insulator transition temperature (TMI) measurement was determined by using Standard four point probe. The grains sizes of the samples become larger and softer with increasing the Bi3+ doping of x. The samples also identified as a rhombohedral structure with space group R3c. For the electrical transport properties, the resistivity is increased while the TMI is decreased when the composition of x is increased. From the graph of intensity (a.u) versus 29 (deg) curves of (Lai.xBix)0.7Ago.3Mn03 with x=0.00,0.10, 0.10 and 0.20, the two peaks below and above the metal-insulator transition temperature were found. The peak below the TMi is the metallic region and double exchange (DE) mechanism plays on it while above TMI, it is known as insulator region and the Jahn Taller mechanism plays on it.
format Student Project
author Md Razak, Siti Munirah
author_facet Md Razak, Siti Munirah
author_sort Md Razak, Siti Munirah
title The effects of electrical transport properties on microstructure of (Lai.xBix)o.7Ago.3Mn03 ceramics. / Siti Munirah Md Razak
title_short The effects of electrical transport properties on microstructure of (Lai.xBix)o.7Ago.3Mn03 ceramics. / Siti Munirah Md Razak
title_full The effects of electrical transport properties on microstructure of (Lai.xBix)o.7Ago.3Mn03 ceramics. / Siti Munirah Md Razak
title_fullStr The effects of electrical transport properties on microstructure of (Lai.xBix)o.7Ago.3Mn03 ceramics. / Siti Munirah Md Razak
title_full_unstemmed The effects of electrical transport properties on microstructure of (Lai.xBix)o.7Ago.3Mn03 ceramics. / Siti Munirah Md Razak
title_sort effects of electrical transport properties on microstructure of (lai.xbix)o.7ago.3mn03 ceramics. / siti munirah md razak
publishDate 2011
url https://ir.uitm.edu.my/id/eprint/46500/1/46500.pdf
https://ir.uitm.edu.my/id/eprint/46500/
_version_ 1753791859299188736
score 13.222552

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