Electrical and magnetic properties of Ga substituted La2/3 Ca 1/3 MnO3 perovskite
Electrical and magnetic properties of gallium substitution for calcium in ABO3 typed colossal magnetoresistance (CMR) La2/3Ca1/3MnO3 (LCMO) perovskite were studied using DC four point probe and AC susceptometer. La2/3 (Ca1-xGax)1/3MnO3 (LCGMO) samples of concentration of x = 0.6, 0.7 and 0.8 were pr...
| Main Authors: | , , , , , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
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IEEE
2003
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| Online Access: | http://psasir.upm.edu.my/id/eprint/48303/ http://psasir.upm.edu.my/id/eprint/48303/1/Electrical%20and%20magnetic%20properties%20of%20Ga%20substituted.pdf |
| _version_ | 1848851046360678400 |
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| author | Chik, Abdullah Shaari, Abdul Halim M. S., Shamiwati Lim, Kean Pah Gebrel, Zohra Ali Mohamed Kabashi, Kabashi Khatir Mat Yunus, Wan Mahmood Abd. Moksin, Mohd Maarof Dalimin, Mohd Noh |
| author_facet | Chik, Abdullah Shaari, Abdul Halim M. S., Shamiwati Lim, Kean Pah Gebrel, Zohra Ali Mohamed Kabashi, Kabashi Khatir Mat Yunus, Wan Mahmood Abd. Moksin, Mohd Maarof Dalimin, Mohd Noh |
| author_sort | Chik, Abdullah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Electrical and magnetic properties of gallium substitution for calcium in ABO3 typed colossal magnetoresistance (CMR) La2/3Ca1/3MnO3 (LCMO) perovskite were studied using DC four point probe and AC susceptometer. La2/3 (Ca1-xGax)1/3MnO3 (LCGMO) samples of concentration of x = 0.6, 0.7 and 0.8 were prepared using the solid state reaction method. Gallium substituted samples show the effect of decreasing Mn4+ concentration and of lattice distortion by incorporation of smaller gallium ionic radius. Electrical transport studies indicate samples with Ga concentration x=0.6 and 0.7 exhibit metal to insulator transition (MIT) at low temperature (50K) and sample x=0.8 only shows insulating behavior with increasing Ga concentration. AC susceptibility studies indicate all samples exhibit ferromagnetic to paramagnetic transition with an antiferromagneric ordering at low temperature showing the effect of decreasing Mn4+ concentration affecting double exchange mechanism and thus magnetic ordering of the samples. |
| first_indexed | 2025-11-15T10:15:57Z |
| format | Conference or Workshop Item |
| id | upm-48303 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:15:57Z |
| publishDate | 2003 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-483032016-09-22T08:41:10Z http://psasir.upm.edu.my/id/eprint/48303/ Electrical and magnetic properties of Ga substituted La2/3 Ca 1/3 MnO3 perovskite Chik, Abdullah Shaari, Abdul Halim M. S., Shamiwati Lim, Kean Pah Gebrel, Zohra Ali Mohamed Kabashi, Kabashi Khatir Mat Yunus, Wan Mahmood Abd. Moksin, Mohd Maarof Dalimin, Mohd Noh Electrical and magnetic properties of gallium substitution for calcium in ABO3 typed colossal magnetoresistance (CMR) La2/3Ca1/3MnO3 (LCMO) perovskite were studied using DC four point probe and AC susceptometer. La2/3 (Ca1-xGax)1/3MnO3 (LCGMO) samples of concentration of x = 0.6, 0.7 and 0.8 were prepared using the solid state reaction method. Gallium substituted samples show the effect of decreasing Mn4+ concentration and of lattice distortion by incorporation of smaller gallium ionic radius. Electrical transport studies indicate samples with Ga concentration x=0.6 and 0.7 exhibit metal to insulator transition (MIT) at low temperature (50K) and sample x=0.8 only shows insulating behavior with increasing Ga concentration. AC susceptibility studies indicate all samples exhibit ferromagnetic to paramagnetic transition with an antiferromagneric ordering at low temperature showing the effect of decreasing Mn4+ concentration affecting double exchange mechanism and thus magnetic ordering of the samples. IEEE 2003 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/48303/1/Electrical%20and%20magnetic%20properties%20of%20Ga%20substituted.pdf Chik, Abdullah and Shaari, Abdul Halim and M. S., Shamiwati and Lim, Kean Pah and Gebrel, Zohra Ali Mohamed and Kabashi, Kabashi Khatir and Mat Yunus, Wan Mahmood and Abd. Moksin, Mohd Maarof and Dalimin, Mohd Noh (2003) Electrical and magnetic properties of Ga substituted La2/3 Ca 1/3 MnO3 perovskite. In: 2003 Asian Conference on Sensors (AsiaSENSE 2003), Malaysia. (pp. 73-77). 10.1109/ASENSE.2003.1224996 |
| spellingShingle | Chik, Abdullah Shaari, Abdul Halim M. S., Shamiwati Lim, Kean Pah Gebrel, Zohra Ali Mohamed Kabashi, Kabashi Khatir Mat Yunus, Wan Mahmood Abd. Moksin, Mohd Maarof Dalimin, Mohd Noh Electrical and magnetic properties of Ga substituted La2/3 Ca 1/3 MnO3 perovskite |
| title | Electrical and magnetic properties of Ga substituted La2/3 Ca 1/3 MnO3 perovskite |
| title_full | Electrical and magnetic properties of Ga substituted La2/3 Ca 1/3 MnO3 perovskite |
| title_fullStr | Electrical and magnetic properties of Ga substituted La2/3 Ca 1/3 MnO3 perovskite |
| title_full_unstemmed | Electrical and magnetic properties of Ga substituted La2/3 Ca 1/3 MnO3 perovskite |
| title_short | Electrical and magnetic properties of Ga substituted La2/3 Ca 1/3 MnO3 perovskite |
| title_sort | electrical and magnetic properties of ga substituted la2/3 ca 1/3 mno3 perovskite |
| url | http://psasir.upm.edu.my/id/eprint/48303/ http://psasir.upm.edu.my/id/eprint/48303/ http://psasir.upm.edu.my/id/eprint/48303/1/Electrical%20and%20magnetic%20properties%20of%20Ga%20substituted.pdf |