Effect of sintering temperature on the microstructure, electrical and magnetotransport properties of La0.67Sr0.33MnO3 compound
In this work, we report the effect of sintering temperature (900°C, 1000°C, 1100°C and 1200°C) on the electrical and magnetotransport properties of polycrystalline La0.67Sr0.33MnO3 (LSMO). Single phase of LSMO hexagonal structure (R-3c) accompanied with minor phases was successfully synthesized by c...
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| Format: | Article |
| Language: | English |
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Trans Tech Publications
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/37309/ http://psasir.upm.edu.my/id/eprint/37309/1/Effect%20of%20sintering%20temperature%20on%20the%20microstructure%2C%20electrical%20and%20magnetotransport%20properties%20of%20La0.67Sr0.33MnO3%20compound.pdf |
| _version_ | 1848848574703468544 |
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| author | Lim, Kean Pah Shaari, Abdul Halim Chen, Soo Kien Chin, Hui Wei Gan, Albert Ng, Siau Wei Chong, Kuen Hou |
| author_facet | Lim, Kean Pah Shaari, Abdul Halim Chen, Soo Kien Chin, Hui Wei Gan, Albert Ng, Siau Wei Chong, Kuen Hou |
| author_sort | Lim, Kean Pah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this work, we report the effect of sintering temperature (900°C, 1000°C, 1100°C and 1200°C) on the electrical and magnetotransport properties of polycrystalline La0.67Sr0.33MnO3 (LSMO). Single phase of LSMO hexagonal structure (R-3c) accompanied with minor phases was successfully synthesized by co-precipitation method. With increasing sintering temperature, grain growth was promoted and grain connectivity was improved. It was found that an enhancement of resistivity on smaller grain size was due to larger grain surface over volume (grain boundaries effect). The shifting of the metal-insulator transition (TMI) to higher temperature was also responsible for observed changes in physical properties. TMI of 900°C, 1000°C and 1100°C were 232 K, 278 K and 298 K respectively however 1200°C was out of measurement range (higher than 300 K). In summary, CP900 with smaller grain size distribution (~200 nm) displayed the highest resistivity and MR% of -19.2% (at 80 K, 10 kG). |
| first_indexed | 2025-11-15T09:36:40Z |
| format | Article |
| id | upm-37309 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:36:40Z |
| publishDate | 2014 |
| publisher | Trans Tech Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-373092015-12-18T05:27:16Z http://psasir.upm.edu.my/id/eprint/37309/ Effect of sintering temperature on the microstructure, electrical and magnetotransport properties of La0.67Sr0.33MnO3 compound Lim, Kean Pah Shaari, Abdul Halim Chen, Soo Kien Chin, Hui Wei Gan, Albert Ng, Siau Wei Chong, Kuen Hou In this work, we report the effect of sintering temperature (900°C, 1000°C, 1100°C and 1200°C) on the electrical and magnetotransport properties of polycrystalline La0.67Sr0.33MnO3 (LSMO). Single phase of LSMO hexagonal structure (R-3c) accompanied with minor phases was successfully synthesized by co-precipitation method. With increasing sintering temperature, grain growth was promoted and grain connectivity was improved. It was found that an enhancement of resistivity on smaller grain size was due to larger grain surface over volume (grain boundaries effect). The shifting of the metal-insulator transition (TMI) to higher temperature was also responsible for observed changes in physical properties. TMI of 900°C, 1000°C and 1100°C were 232 K, 278 K and 298 K respectively however 1200°C was out of measurement range (higher than 300 K). In summary, CP900 with smaller grain size distribution (~200 nm) displayed the highest resistivity and MR% of -19.2% (at 80 K, 10 kG). Trans Tech Publications 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37309/1/Effect%20of%20sintering%20temperature%20on%20the%20microstructure%2C%20electrical%20and%20magnetotransport%20properties%20of%20La0.67Sr0.33MnO3%20compound.pdf Lim, Kean Pah and Shaari, Abdul Halim and Chen, Soo Kien and Chin, Hui Wei and Gan, Albert and Ng, Siau Wei and Chong, Kuen Hou (2014) Effect of sintering temperature on the microstructure, electrical and magnetotransport properties of La0.67Sr0.33MnO3 compound. Advanced Materials Research, 895. pp. 319-322. ISSN 1022-6680; ESSN: 1662-8985 http://www.scientific.net/AMR.895.319 10.4028/www.scientific.net/AMR.895.319 |
| spellingShingle | Lim, Kean Pah Shaari, Abdul Halim Chen, Soo Kien Chin, Hui Wei Gan, Albert Ng, Siau Wei Chong, Kuen Hou Effect of sintering temperature on the microstructure, electrical and magnetotransport properties of La0.67Sr0.33MnO3 compound |
| title | Effect of sintering temperature on the microstructure, electrical and magnetotransport properties of La0.67Sr0.33MnO3 compound |
| title_full | Effect of sintering temperature on the microstructure, electrical and magnetotransport properties of La0.67Sr0.33MnO3 compound |
| title_fullStr | Effect of sintering temperature on the microstructure, electrical and magnetotransport properties of La0.67Sr0.33MnO3 compound |
| title_full_unstemmed | Effect of sintering temperature on the microstructure, electrical and magnetotransport properties of La0.67Sr0.33MnO3 compound |
| title_short | Effect of sintering temperature on the microstructure, electrical and magnetotransport properties of La0.67Sr0.33MnO3 compound |
| title_sort | effect of sintering temperature on the microstructure, electrical and magnetotransport properties of la0.67sr0.33mno3 compound |
| url | http://psasir.upm.edu.my/id/eprint/37309/ http://psasir.upm.edu.my/id/eprint/37309/ http://psasir.upm.edu.my/id/eprint/37309/ http://psasir.upm.edu.my/id/eprint/37309/1/Effect%20of%20sintering%20temperature%20on%20the%20microstructure%2C%20electrical%20and%20magnetotransport%20properties%20of%20La0.67Sr0.33MnO3%20compound.pdf |