Magnetic and electrical transport properties of Pb1-xLaxTi1-xMnxO3 ceramics
Pb1-xLaxTi1-xMnxO3 (PLTM100x, x = 0.20, 0.40, 0.50, 0.60, and 0.80) ceramics have been prepared and investigated. X-ray diffractions show all ceramics are crystallized into perovskite structures with tetragonal symmetry for PLTMO20 and orthorhombic symmetry for the other compositions. X-ray photoele...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2012-09-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4749254 |
| _version_ | 1811268092146221056 |
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| author | Jie Xu Jin-Feng Wang Long Jiao Weijing Ji Jian Zhou Zheng-Bin Gu Y. B. Chen Shu-Hua Yao Shan-Tao Zhang Yan-Feng Chen |
| author_facet | Jie Xu Jin-Feng Wang Long Jiao Weijing Ji Jian Zhou Zheng-Bin Gu Y. B. Chen Shu-Hua Yao Shan-Tao Zhang Yan-Feng Chen |
| author_sort | Jie Xu |
| collection | DOAJ |
| description | Pb1-xLaxTi1-xMnxO3 (PLTM100x, x = 0.20, 0.40, 0.50, 0.60, and 0.80) ceramics have been prepared and investigated. X-ray diffractions show all ceramics are crystallized into perovskite structures with tetragonal symmetry for PLTMO20 and orthorhombic symmetry for the other compositions. X-ray photoelectron spectroscopy results confirm that the Mn cations in PLTMO20 and PLTMO40 have the valence state of +3, whereas in other compositions, the Mn cations have mixed valences states of +3 and +4. With increasing x from 0.20 to 0.80, the materials change from superparamagnetic to coexisting ferromagnetic and antiferromagnetic magnetic behaviour whereas all compositions persist insulating behaviour, as confirmed by the magnetization-magnetic field (M-H), the temperature dependent magnetization (M-T) and transport measurements. Especially, the PLTMO80 has a large negative magnetoresistance of −41.5% at 10 K with the applied filed of 2 T. By considering the chemical states of Mn cations, these results are attributed to that the coexistence of metallic ferromagnetic and insulating non-ferromagnetic phases. |
| first_indexed | 2024-04-12T21:15:34Z |
| format | Article |
| id | doaj.art-01a33e81208a415887126cd04afd37be |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-12T21:15:34Z |
| publishDate | 2012-09-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-01a33e81208a415887126cd04afd37be2022-12-22T03:16:26ZengAIP Publishing LLCAIP Advances2158-32262012-09-0123032156032156-1010.1063/1.4749254056203ADVMagnetic and electrical transport properties of Pb1-xLaxTi1-xMnxO3 ceramicsJie Xu0Jin-Feng Wang1Long Jiao2Weijing Ji3Jian Zhou4Zheng-Bin Gu5Y. B. Chen6Shu-Hua Yao7Shan-Tao Zhang8Yan-Feng Chen9National Laboratory of Solid State Microstructure and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructure and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructure and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructure and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructure and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructure and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructure and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructure and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructure and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, ChinaPb1-xLaxTi1-xMnxO3 (PLTM100x, x = 0.20, 0.40, 0.50, 0.60, and 0.80) ceramics have been prepared and investigated. X-ray diffractions show all ceramics are crystallized into perovskite structures with tetragonal symmetry for PLTMO20 and orthorhombic symmetry for the other compositions. X-ray photoelectron spectroscopy results confirm that the Mn cations in PLTMO20 and PLTMO40 have the valence state of +3, whereas in other compositions, the Mn cations have mixed valences states of +3 and +4. With increasing x from 0.20 to 0.80, the materials change from superparamagnetic to coexisting ferromagnetic and antiferromagnetic magnetic behaviour whereas all compositions persist insulating behaviour, as confirmed by the magnetization-magnetic field (M-H), the temperature dependent magnetization (M-T) and transport measurements. Especially, the PLTMO80 has a large negative magnetoresistance of −41.5% at 10 K with the applied filed of 2 T. By considering the chemical states of Mn cations, these results are attributed to that the coexistence of metallic ferromagnetic and insulating non-ferromagnetic phases.http://dx.doi.org/10.1063/1.4749254 |
| spellingShingle | Jie Xu Jin-Feng Wang Long Jiao Weijing Ji Jian Zhou Zheng-Bin Gu Y. B. Chen Shu-Hua Yao Shan-Tao Zhang Yan-Feng Chen Magnetic and electrical transport properties of Pb1-xLaxTi1-xMnxO3 ceramics AIP Advances |
| title | Magnetic and electrical transport properties of Pb1-xLaxTi1-xMnxO3 ceramics |
| title_full | Magnetic and electrical transport properties of Pb1-xLaxTi1-xMnxO3 ceramics |
| title_fullStr | Magnetic and electrical transport properties of Pb1-xLaxTi1-xMnxO3 ceramics |
| title_full_unstemmed | Magnetic and electrical transport properties of Pb1-xLaxTi1-xMnxO3 ceramics |
| title_short | Magnetic and electrical transport properties of Pb1-xLaxTi1-xMnxO3 ceramics |
| title_sort | magnetic and electrical transport properties of pb1 xlaxti1 xmnxo3 ceramics |
| url | http://dx.doi.org/10.1063/1.4749254 |
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