Structural, microstructural and electrical properties of La0.67(Ba,Sr)0.33MnO3 system
La0.67(Ba,Sr)0.33MnO3 were prepared via solid‐state reaction method. Rietveld refinement showed that when Ba2+(1.49Å) is replaced with smaller ion, Sr2+(1.32Å), its lattice parameter, volume, bond distance and angle decreases, and also different microstructure was obtained. Transition temperature, T...
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| Format: | Conference or Workshop Item |
| Language: | English |
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American Institute of Physics
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/57374/ http://psasir.upm.edu.my/id/eprint/57374/1/Structural%2C%20microstructural%20and%20electrical%20properties%20of%20La0.67%28Ba%2CSr%290.33MnO3%20system.pdf |
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| author | Gan, Albert Han Ming Lim, Kean Pah Chen, Soo Kien Talib, Zainal Abidin Wong, Jen Kuen |
| author_facet | Gan, Albert Han Ming Lim, Kean Pah Chen, Soo Kien Talib, Zainal Abidin Wong, Jen Kuen |
| author_sort | Gan, Albert Han Ming |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | La0.67(Ba,Sr)0.33MnO3 were prepared via solid‐state reaction method. Rietveld refinement showed that when Ba2+(1.49Å) is replaced with smaller ion, Sr2+(1.32Å), its lattice parameter, volume, bond distance and angle decreases, and also different microstructure was obtained. Transition temperature, Tp shifted to higher temperature while the resistance and magnetoresistance (MR) behaviour of samples were quite similar. This phenomenon believed to be due to the variation of spin‐dependent scattering and/or spin‐polarization tunneling across the grain surface/boundary. Typical polycrystalline (intrinsic and extrinsic MR) type of MR is shown for both samples. The highest % of low‐field magnetoresistance (LFMR) (at 0.1T) of ‐11.5% and ‐10.2% at 80 K was given by La0.67Ba0.33MnO3 (LBMO) and La0.67Sr0.33MnO3 (LSMO) samples respectively. |
| first_indexed | 2025-11-15T10:52:32Z |
| format | Conference or Workshop Item |
| id | upm-57374 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:52:32Z |
| publishDate | 2010 |
| publisher | American Institute of Physics |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-573742017-09-27T06:37:01Z http://psasir.upm.edu.my/id/eprint/57374/ Structural, microstructural and electrical properties of La0.67(Ba,Sr)0.33MnO3 system Gan, Albert Han Ming Lim, Kean Pah Chen, Soo Kien Talib, Zainal Abidin Wong, Jen Kuen La0.67(Ba,Sr)0.33MnO3 were prepared via solid‐state reaction method. Rietveld refinement showed that when Ba2+(1.49Å) is replaced with smaller ion, Sr2+(1.32Å), its lattice parameter, volume, bond distance and angle decreases, and also different microstructure was obtained. Transition temperature, Tp shifted to higher temperature while the resistance and magnetoresistance (MR) behaviour of samples were quite similar. This phenomenon believed to be due to the variation of spin‐dependent scattering and/or spin‐polarization tunneling across the grain surface/boundary. Typical polycrystalline (intrinsic and extrinsic MR) type of MR is shown for both samples. The highest % of low‐field magnetoresistance (LFMR) (at 0.1T) of ‐11.5% and ‐10.2% at 80 K was given by La0.67Ba0.33MnO3 (LBMO) and La0.67Sr0.33MnO3 (LSMO) samples respectively. American Institute of Physics 2010 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/57374/1/Structural%2C%20microstructural%20and%20electrical%20properties%20of%20La0.67%28Ba%2CSr%290.33MnO3%20system.pdf Gan, Albert Han Ming and Lim, Kean Pah and Chen, Soo Kien and Talib, Zainal Abidin and Wong, Jen Kuen (2010) Structural, microstructural and electrical properties of La0.67(Ba,Sr)0.33MnO3 system. In: Malaysia Annual Physics Conference 2010 (PERFIK‐2010), 27-30 Oct. 2010, Damai Laut, Perak, Malaysia. (pp. 254-256). 10.1063/1.3573746 |
| spellingShingle | Gan, Albert Han Ming Lim, Kean Pah Chen, Soo Kien Talib, Zainal Abidin Wong, Jen Kuen Structural, microstructural and electrical properties of La0.67(Ba,Sr)0.33MnO3 system |
| title | Structural, microstructural and electrical properties of La0.67(Ba,Sr)0.33MnO3 system |
| title_full | Structural, microstructural and electrical properties of La0.67(Ba,Sr)0.33MnO3 system |
| title_fullStr | Structural, microstructural and electrical properties of La0.67(Ba,Sr)0.33MnO3 system |
| title_full_unstemmed | Structural, microstructural and electrical properties of La0.67(Ba,Sr)0.33MnO3 system |
| title_short | Structural, microstructural and electrical properties of La0.67(Ba,Sr)0.33MnO3 system |
| title_sort | structural, microstructural and electrical properties of la0.67(ba,sr)0.33mno3 system |
| url | http://psasir.upm.edu.my/id/eprint/57374/ http://psasir.upm.edu.my/id/eprint/57374/ http://psasir.upm.edu.my/id/eprint/57374/1/Structural%2C%20microstructural%20and%20electrical%20properties%20of%20La0.67%28Ba%2CSr%290.33MnO3%20system.pdf |