Electrical and magneto-transport properties of magneto-resistive La 0.7Ca 0.28Sr 0.2MnO 3 prepared at different sintering temperature
The effects of strontium doping on the electrical and magneto-transport properties of magneto resistive La 0.7Ca 0.28Sr0.02MnO 3 at different sintering temperatures have been studied. The samples were prepared by the co-precipitation technique (COP) and sintered at 1120, 1220 and 1320 oC. XRD patter...
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my.uniten.dspace-295382023-12-28T14:30:26Z Electrical and magneto-transport properties of magneto-resistive La 0.7Ca 0.28Sr 0.2MnO 3 prepared at different sintering temperature Ewe L.S. Ramli R. Lim K.P. Abd-Shukor R. 58032789200 57195320409 24776093100 7004750914 Activation energy Electrical resistivity Magnetotransport Manganites activation energy electrical property electrical resistivity magnetic field strontium temperature X-ray diffraction The effects of strontium doping on the electrical and magneto-transport properties of magneto resistive La 0.7Ca 0.28Sr0.02MnO 3 at different sintering temperatures have been studied. The samples were prepared by the co-precipitation technique (COP) and sintered at 1120, 1220 and 1320 oC. XRD patterns revealed that the samples have an orthorhombic structure and the diffraction patterns can be indexed with the Pbnm space group. The insulator metal transition, TIM increased linearly from 261 K to 272 K with the increase in sintering temperature. The magnetoresistance (MR) measurements were made in magnetic fields from 0.1 to 1 T at room temperature. The percentage of MR increased with increasing of magnetic field and sintering temperature for all samples. The electrical resistivity data were fitted with several equations in the metallic (ferromagnetic) and insulator (paramagnetic) regime. The density of states at the Fermi level N(EF) and the activation energy (Ea) of electron hopping were estimated by using variable range hopping and small polaron hopping model. Copyright Reserved � 2007 Sains Malaysiana. Final 2023-12-28T06:30:26Z 2023-12-28T06:30:26Z 2012 Article 2-s2.0-84862741255 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84862741255&partnerID=40&md5=2c2c68e332a0a1bc212499ec5f0bcf77 https://irepository.uniten.edu.my/handle/123456789/29538 41 6 761 768 Scopus |
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Activation energy Electrical resistivity Magnetotransport Manganites activation energy electrical property electrical resistivity magnetic field strontium temperature X-ray diffraction |
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Activation energy Electrical resistivity Magnetotransport Manganites activation energy electrical property electrical resistivity magnetic field strontium temperature X-ray diffraction Ewe L.S. Ramli R. Lim K.P. Abd-Shukor R. Electrical and magneto-transport properties of magneto-resistive La 0.7Ca 0.28Sr 0.2MnO 3 prepared at different sintering temperature |
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The effects of strontium doping on the electrical and magneto-transport properties of magneto resistive La 0.7Ca 0.28Sr0.02MnO 3 at different sintering temperatures have been studied. The samples were prepared by the co-precipitation technique (COP) and sintered at 1120, 1220 and 1320 oC. XRD patterns revealed that the samples have an orthorhombic structure and the diffraction patterns can be indexed with the Pbnm space group. The insulator metal transition, TIM increased linearly from 261 K to 272 K with the increase in sintering temperature. The magnetoresistance (MR) measurements were made in magnetic fields from 0.1 to 1 T at room temperature. The percentage of MR increased with increasing of magnetic field and sintering temperature for all samples. The electrical resistivity data were fitted with several equations in the metallic (ferromagnetic) and insulator (paramagnetic) regime. The density of states at the Fermi level N(EF) and the activation energy (Ea) of electron hopping were estimated by using variable range hopping and small polaron hopping model. Copyright Reserved � 2007 Sains Malaysiana. |
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58032789200 |
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58032789200 Ewe L.S. Ramli R. Lim K.P. Abd-Shukor R. |
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Ewe L.S. Ramli R. Lim K.P. Abd-Shukor R. |
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Ewe L.S. |
title |
Electrical and magneto-transport properties of magneto-resistive La 0.7Ca 0.28Sr 0.2MnO 3 prepared at different sintering temperature |
title_short |
Electrical and magneto-transport properties of magneto-resistive La 0.7Ca 0.28Sr 0.2MnO 3 prepared at different sintering temperature |
title_full |
Electrical and magneto-transport properties of magneto-resistive La 0.7Ca 0.28Sr 0.2MnO 3 prepared at different sintering temperature |
title_fullStr |
Electrical and magneto-transport properties of magneto-resistive La 0.7Ca 0.28Sr 0.2MnO 3 prepared at different sintering temperature |
title_full_unstemmed |
Electrical and magneto-transport properties of magneto-resistive La 0.7Ca 0.28Sr 0.2MnO 3 prepared at different sintering temperature |
title_sort |
electrical and magneto-transport properties of magneto-resistive la 0.7ca 0.28sr 0.2mno 3 prepared at different sintering temperature |
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2023 |
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1806424291760144384 |
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13.222552 |