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Effect of Pr substitution on magnetoresistance in La23/Ba13/MnO3 perovskite

Polycrystalline of (La1-xPrx)0.67Ba0.33MnO3 with x = 0, 0.167, 0.33, 0.5, 0.67, 0.833, 1 have been prepared using solid state reaction. The effect of substituting praseodymium at La-site on magnetoresistance (MR) effect has been investigated. The electrical property, was determined by using standard...

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Main Authors: Shaari, Abdul Halim, A., Huda, Lim, Kean Pah, Lee, Oon Jew, Saion, Elias, Wan Yusoff, Wan Mohd Daud, Cik, Abdulah
Format: Conference or Workshop Item
Language:English
Published: IEEE 2004
Online Access:http://psasir.upm.edu.my/id/eprint/48201/1/Effect%20of%20Pr%20substitution%20on%20magnetoresistance%20in%20La2.pdf
http://psasir.upm.edu.my/id/eprint/48201/
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spelling my.upm.eprints.482012016-08-04T05:17:12Z http://psasir.upm.edu.my/id/eprint/48201/ Effect of Pr substitution on magnetoresistance in La23/Ba13/MnO3 perovskite Shaari, Abdul Halim A., Huda Lim, Kean Pah Lee, Oon Jew Saion, Elias Wan Yusoff, Wan Mohd Daud Cik, Abdulah Polycrystalline of (La1-xPrx)0.67Ba0.33MnO3 with x = 0, 0.167, 0.33, 0.5, 0.67, 0.833, 1 have been prepared using solid state reaction. The effect of substituting praseodymium at La-site on magnetoresistance (MR) effect has been investigated. The electrical property, was determined by using standard four-point probe resistivity measurement in a temperature range of 30 K to 300 K. Metal-insulator transition temperature (Tp) shifted to lower temperatures with the increases of Pr doping with the value of >300, 270, 250, 226, 202, 186 and 158 K for x = 0, 0.167, 0.33, 0.5, 0.67, 0.833, 1, respectively. Overall, MR drops slowly when temperature rises. All doping concentration give small variation range (5% to 25%) except for x=1.0, where this sample show significantly higher MR value at all temperature as compared to other samples. The highest MR value of 38% is observed at 270K. In the semiconducting portion, activation energy (Ea) has been investigated. The Ea increases as the doping concentration increases. IEEE 2004 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/48201/1/Effect%20of%20Pr%20substitution%20on%20magnetoresistance%20in%20La2.pdf Shaari, Abdul Halim and A., Huda and Lim, Kean Pah and Lee, Oon Jew and Saion, Elias and Wan Yusoff, Wan Mohd Daud and Cik, Abdulah (2004) Effect of Pr substitution on magnetoresistance in La23/Ba13/MnO3 perovskite. In: IEEE International Conference on Semiconductor Electronics (ICSE 2004), 7-9 Dec. 2004, Kuala Lumpur, Malaysia. (pp. 497-502). 10.1109/SMELEC.2004.1620935
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Polycrystalline of (La1-xPrx)0.67Ba0.33MnO3 with x = 0, 0.167, 0.33, 0.5, 0.67, 0.833, 1 have been prepared using solid state reaction. The effect of substituting praseodymium at La-site on magnetoresistance (MR) effect has been investigated. The electrical property, was determined by using standard four-point probe resistivity measurement in a temperature range of 30 K to 300 K. Metal-insulator transition temperature (Tp) shifted to lower temperatures with the increases of Pr doping with the value of >300, 270, 250, 226, 202, 186 and 158 K for x = 0, 0.167, 0.33, 0.5, 0.67, 0.833, 1, respectively. Overall, MR drops slowly when temperature rises. All doping concentration give small variation range (5% to 25%) except for x=1.0, where this sample show significantly higher MR value at all temperature as compared to other samples. The highest MR value of 38% is observed at 270K. In the semiconducting portion, activation energy (Ea) has been investigated. The Ea increases as the doping concentration increases.
format Conference or Workshop Item
author Shaari, Abdul Halim
A., Huda
Lim, Kean Pah
Lee, Oon Jew
Saion, Elias
Wan Yusoff, Wan Mohd Daud
Cik, Abdulah
spellingShingle Shaari, Abdul Halim
A., Huda
Lim, Kean Pah
Lee, Oon Jew
Saion, Elias
Wan Yusoff, Wan Mohd Daud
Cik, Abdulah
Effect of Pr substitution on magnetoresistance in La23/Ba13/MnO3 perovskite
author_facet Shaari, Abdul Halim
A., Huda
Lim, Kean Pah
Lee, Oon Jew
Saion, Elias
Wan Yusoff, Wan Mohd Daud
Cik, Abdulah
author_sort Shaari, Abdul Halim
title Effect of Pr substitution on magnetoresistance in La23/Ba13/MnO3 perovskite
title_short Effect of Pr substitution on magnetoresistance in La23/Ba13/MnO3 perovskite
title_full Effect of Pr substitution on magnetoresistance in La23/Ba13/MnO3 perovskite
title_fullStr Effect of Pr substitution on magnetoresistance in La23/Ba13/MnO3 perovskite
title_full_unstemmed Effect of Pr substitution on magnetoresistance in La23/Ba13/MnO3 perovskite
title_sort effect of pr substitution on magnetoresistance in la23/ba13/mno3 perovskite
publisher IEEE
publishDate 2004
url http://psasir.upm.edu.my/id/eprint/48201/1/Effect%20of%20Pr%20substitution%20on%20magnetoresistance%20in%20La2.pdf
http://psasir.upm.edu.my/id/eprint/48201/
_version_ 1643834105082675200
score 13.211869

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