Effect of Cr Dopingin Mn Site on Low Field Magnetoresistance of Manganite La0.7Ca0.3MnO3
In order to study the magnetoresistance effect of perovskite manganite in low magnetic fields, manganite polycrystalline samples La0.7Ca0.3Mn1-xCrxO3(x=0, 0.1) were prepared by solid-state reaction technique Resistance-temperature curves and magnetoresistance-temperature curves of the two samples we...
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Harbin University of Science and Technology Publications
2019-06-01
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| Series: | Journal of Harbin University of Science and Technology |
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| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1694 |
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| author | ZHANG Guang-yu LIU Lin-jing |
| author_facet | ZHANG Guang-yu LIU Lin-jing |
| author_sort | ZHANG Guang-yu |
| collection | DOAJ |
| description | In order to study the magnetoresistance effect of perovskite manganite in low magnetic fields, manganite polycrystalline samples La0.7Ca0.3Mn1-xCrxO3(x=0, 0.1) were prepared by solid-state reaction technique Resistance-temperature curves and magnetoresistance-temperature curves of the two samples were measured in zero magnetic field and 025 T magnetic field Influence of different substitution of Cr for Mn on low field magnetoresistance effects of the samples was analyzed Experimental results showed that the metal-insulator transition temperature of the samples gradually moved to lower temperature and the magnetoresistance peak temperature of the samples decreased from TP≈220K to TP≈190K with the increase of Cr doping from x=0 to x=0.1. The samples showed large magnetoresistance over liquid nitrogen temperature range in 0.25 T magnetic field. |
| format | Article |
| id | doaj-art-3fa4abb8e5f746688ead6324a0a19f95 |
| institution | DOAJ |
| issn | 1007-2683 |
| language | zho |
| publishDate | 2019-06-01 |
| publisher | Harbin University of Science and Technology Publications |
| record_format | Article |
| series | Journal of Harbin University of Science and Technology |
| spelling | doaj-art-3fa4abb8e5f746688ead6324a0a19f952025-08-20T03:06:20ZzhoHarbin University of Science and Technology PublicationsJournal of Harbin University of Science and Technology1007-26832019-06-01240313013310.15938/j.jhust.2019.03.021Effect of Cr Dopingin Mn Site on Low Field Magnetoresistance of Manganite La0.7Ca0.3MnO3 ZHANG Guang-yu0LIU Lin-jing1School of Applied Sciences, Harbin University of Science and Technology, Harbin 150080, ChinaSchool of Applied Sciences, Harbin University of Science and Technology, Harbin 150080, ChinaIn order to study the magnetoresistance effect of perovskite manganite in low magnetic fields, manganite polycrystalline samples La0.7Ca0.3Mn1-xCrxO3(x=0, 0.1) were prepared by solid-state reaction technique Resistance-temperature curves and magnetoresistance-temperature curves of the two samples were measured in zero magnetic field and 025 T magnetic field Influence of different substitution of Cr for Mn on low field magnetoresistance effects of the samples was analyzed Experimental results showed that the metal-insulator transition temperature of the samples gradually moved to lower temperature and the magnetoresistance peak temperature of the samples decreased from TP≈220K to TP≈190K with the increase of Cr doping from x=0 to x=0.1. The samples showed large magnetoresistance over liquid nitrogen temperature range in 0.25 T magnetic field.https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1694manganitesolid-state reactiondouble exchangelow field magnetoresistance |
| spellingShingle | ZHANG Guang-yu LIU Lin-jing Effect of Cr Dopingin Mn Site on Low Field Magnetoresistance of Manganite La0.7Ca0.3MnO3 Journal of Harbin University of Science and Technology manganite solid-state reaction double exchange low field magnetoresistance |
| title | Effect of Cr Dopingin Mn Site on Low Field Magnetoresistance of Manganite La0.7Ca0.3MnO3 |
| title_full | Effect of Cr Dopingin Mn Site on Low Field Magnetoresistance of Manganite La0.7Ca0.3MnO3 |
| title_fullStr | Effect of Cr Dopingin Mn Site on Low Field Magnetoresistance of Manganite La0.7Ca0.3MnO3 |
| title_full_unstemmed | Effect of Cr Dopingin Mn Site on Low Field Magnetoresistance of Manganite La0.7Ca0.3MnO3 |
| title_short | Effect of Cr Dopingin Mn Site on Low Field Magnetoresistance of Manganite La0.7Ca0.3MnO3 |
| title_sort | effect of cr dopingin mn site on low field magnetoresistance of manganite la0 7ca0 3mno3 |
| topic | manganite solid-state reaction double exchange low field magnetoresistance |
| url | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1694 |
| work_keys_str_mv | AT zhangguangyu effectofcrdopinginmnsiteonlowfieldmagnetoresistanceofmanganitela07ca03mno3 AT liulinjing effectofcrdopinginmnsiteonlowfieldmagnetoresistanceofmanganitela07ca03mno3 |