Electrical transport properties of Pr1-xSrxMnO 3 (x = 0 to 0�45)
The electrical transport properties of polycrystalline Pr 1-xSrxMnO3 (x = 0 to 0�45) perovskite manganites prepared by the solid state reaction method have been studied. The insulator-metal transition temperature Tim shifted to higher temperatures when Sr content was increased. Generally, the averag...
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2023
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| author | Ewe L.S. Abd-Shukor R. |
| author2 | 58032789200 |
| author_facet | 58032789200 Ewe L.S. Abd-Shukor R. |
| author_sort | Ewe L.S. |
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| content_provider | Universiti Tenaga Nasional |
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| continent | Asia |
| country | Malaysia |
| description | The electrical transport properties of polycrystalline Pr 1-xSrxMnO3 (x = 0 to 0�45) perovskite manganites prepared by the solid state reaction method have been studied. The insulator-metal transition temperature Tim shifted to higher temperatures when Sr content was increased. Generally, the average grain size decreased with increase in Sr content. The resistivity versus temperature curves in the metallic (ferromagnetic) and insulating (paramagnetic) region were fitted with several models. The activation energy of electrons hopping and the density of states at the Fermi level were estimated from the curve fitting. The ?-T2 curve was found to be nearly linear in the metallic region, but the ?-T2�5 curve deviated from linearity for x = 0�2 and 0�33. The variable range hopping model and small polaron hopping models fit well in the high temperature region. Sr substitution led to the decrease in the activation energy and the To values. � 2010 Institute of Materials, Minerals and Mining. |
| format | Article |
| id | my.uniten.dspace-30712 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2023 |
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| spelling | my.uniten.dspace-307122023-12-29T15:51:42Z Electrical transport properties of Pr1-xSrxMnO 3 (x = 0 to 0�45) Ewe L.S. Abd-Shukor R. 58032789200 7004750914 Activation energy Electrical resistance Manganites Curve fitting Electric properties Electric resistance Manganese oxide Metal insulator transition Perovskite Praseodymium compounds Solid state reactions Transport properties Average grain size Density of state Electrical resistance Electrical transport properties Energy of electron High temperature Higher temperatures Insulator-metal transition temperature Metallic regions Perovskite manganites Polycrystalline Small polaron hopping models Solid state reaction method Temperature curves Variable range hopping model Activation energy The electrical transport properties of polycrystalline Pr 1-xSrxMnO3 (x = 0 to 0�45) perovskite manganites prepared by the solid state reaction method have been studied. The insulator-metal transition temperature Tim shifted to higher temperatures when Sr content was increased. Generally, the average grain size decreased with increase in Sr content. The resistivity versus temperature curves in the metallic (ferromagnetic) and insulating (paramagnetic) region were fitted with several models. The activation energy of electrons hopping and the density of states at the Fermi level were estimated from the curve fitting. The ?-T2 curve was found to be nearly linear in the metallic region, but the ?-T2�5 curve deviated from linearity for x = 0�2 and 0�33. The variable range hopping model and small polaron hopping models fit well in the high temperature region. Sr substitution led to the decrease in the activation energy and the To values. � 2010 Institute of Materials, Minerals and Mining. Final 2023-12-29T07:51:42Z 2023-12-29T07:51:42Z 2010 Article 10.1179/174367510X12722693956239 2-s2.0-77957564937 https://www.scopus.com/inward/record.uri?eid=2-s2.0-77957564937&doi=10.1179%2f174367510X12722693956239&partnerID=40&md5=4914f9ffaccba0430d9d15736e2588c8 https://irepository.uniten.edu.my/handle/123456789/30712 109 7 426 430 Scopus |
| spellingShingle | Activation energy Electrical resistance Manganites Curve fitting Electric properties Electric resistance Manganese oxide Metal insulator transition Perovskite Praseodymium compounds Solid state reactions Transport properties Average grain size Density of state Electrical resistance Electrical transport properties Energy of electron High temperature Higher temperatures Insulator-metal transition temperature Metallic regions Perovskite manganites Polycrystalline Small polaron hopping models Solid state reaction method Temperature curves Variable range hopping model Activation energy Ewe L.S. Abd-Shukor R. Electrical transport properties of Pr1-xSrxMnO 3 (x = 0 to 0�45) |
| title | Electrical transport properties of Pr1-xSrxMnO 3 (x = 0 to 0�45) |
| title_full | Electrical transport properties of Pr1-xSrxMnO 3 (x = 0 to 0�45) |
| title_fullStr | Electrical transport properties of Pr1-xSrxMnO 3 (x = 0 to 0�45) |
| title_full_unstemmed | Electrical transport properties of Pr1-xSrxMnO 3 (x = 0 to 0�45) |
| title_short | Electrical transport properties of Pr1-xSrxMnO 3 (x = 0 to 0�45) |
| title_sort | electrical transport properties of pr1-xsrxmno 3 (x = 0 to 0�45) |
| topic | Activation energy Electrical resistance Manganites Curve fitting Electric properties Electric resistance Manganese oxide Metal insulator transition Perovskite Praseodymium compounds Solid state reactions Transport properties Average grain size Density of state Electrical resistance Electrical transport properties Energy of electron High temperature Higher temperatures Insulator-metal transition temperature Metallic regions Perovskite manganites Polycrystalline Small polaron hopping models Solid state reaction method Temperature curves Variable range hopping model Activation energy |
| url_provider | http://dspace.uniten.edu.my/ |