Revival of ferromagnetic behavior in charge-ordered Pr0.75Na0.25MnO3 manganite by ruthenium doping at Mn site and its MR effect
Ru doping in charge-ordered Pr0.75Na0.25Mn1-xRuxO3 (x = 0–0.1) manganites was studied to investigate its effect on structure, electrical transport, magnetic properties, and magnetotransport properties. DC electrical resistivity (ρ), magnetic susceptibility, and χ’ measurements showed that sample x =...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Academic Press
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/73806/1/Revival%20of%20ferromagnetic%20behavior%20.pdf |
| _version_ | 1796979635269926912 |
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| author | E., Elyana Mohamed, Zakiah Ahmad Kamil, Suraya Supardan, Siti Nurbaya Chen, S. K. Yahya, A. K. |
| author_facet | E., Elyana Mohamed, Zakiah Ahmad Kamil, Suraya Supardan, Siti Nurbaya Chen, S. K. Yahya, A. K. |
| author_sort | E., Elyana |
| collection | UPM |
| description | Ru doping in charge-ordered Pr0.75Na0.25Mn1-xRuxO3 (x = 0–0.1) manganites was studied to investigate its effect on structure, electrical transport, magnetic properties, and magnetotransport properties. DC electrical resistivity (ρ), magnetic susceptibility, and χ’ measurements showed that sample x = 0 exhibits insulating behavior within the entire temperature range and antiferromagnetic (AFM) behavior below the charge-ordering (CO) transition temperature TCO of 221 K. Ru4+ substitution (x>0.01) suppressed the CO state, which resulted in the revival of paramagnetic to ferromagnetic (FM) transition at the Curie temperature Tc, increasing from 120 K (x = 0.01) to 193 K (x = 0.1). Deviation from the Curie–Weiss law above Tc in the 1/χ’ versus T plot for x = 0.01 doped samples indicated the existence of Griffiths phase with Griffith temperature at 169 K. Electrical resistivity measurements showed that Ru4+ substitution increased the metallic-to-insulating transition temperature TMI from 144 K (x = 0.01) to 192 K (x = 0.05) due to enhanced double-exchange mechanism, but TMI decreased to 176 K (x = 0.1) probably due to the existence of AFM clusters within the FM domain. The present work also discussed the possible theoretical models at the resistivity curve of Pr0.75Na0.25Mn1-xRuxO3 (x = 0–0.1) for the entire temperature range. |
| first_indexed | 2024-03-06T10:11:46Z |
| format | Article |
| id | upm.eprints-73806 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:11:46Z |
| publishDate | 2018 |
| publisher | Academic Press |
| record_format | dspace |
| spelling | upm.eprints-738062021-12-03T03:22:49Z http://psasir.upm.edu.my/id/eprint/73806/ Revival of ferromagnetic behavior in charge-ordered Pr0.75Na0.25MnO3 manganite by ruthenium doping at Mn site and its MR effect E., Elyana Mohamed, Zakiah Ahmad Kamil, Suraya Supardan, Siti Nurbaya Chen, S. K. Yahya, A. K. Ru doping in charge-ordered Pr0.75Na0.25Mn1-xRuxO3 (x = 0–0.1) manganites was studied to investigate its effect on structure, electrical transport, magnetic properties, and magnetotransport properties. DC electrical resistivity (ρ), magnetic susceptibility, and χ’ measurements showed that sample x = 0 exhibits insulating behavior within the entire temperature range and antiferromagnetic (AFM) behavior below the charge-ordering (CO) transition temperature TCO of 221 K. Ru4+ substitution (x>0.01) suppressed the CO state, which resulted in the revival of paramagnetic to ferromagnetic (FM) transition at the Curie temperature Tc, increasing from 120 K (x = 0.01) to 193 K (x = 0.1). Deviation from the Curie–Weiss law above Tc in the 1/χ’ versus T plot for x = 0.01 doped samples indicated the existence of Griffiths phase with Griffith temperature at 169 K. Electrical resistivity measurements showed that Ru4+ substitution increased the metallic-to-insulating transition temperature TMI from 144 K (x = 0.01) to 192 K (x = 0.05) due to enhanced double-exchange mechanism, but TMI decreased to 176 K (x = 0.1) probably due to the existence of AFM clusters within the FM domain. The present work also discussed the possible theoretical models at the resistivity curve of Pr0.75Na0.25Mn1-xRuxO3 (x = 0–0.1) for the entire temperature range. Academic Press 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/73806/1/Revival%20of%20ferromagnetic%20behavior%20.pdf E., Elyana and Mohamed, Zakiah and Ahmad Kamil, Suraya and Supardan, Siti Nurbaya and Chen, S. K. and Yahya, A. K. (2018) Revival of ferromagnetic behavior in charge-ordered Pr0.75Na0.25MnO3 manganite by ruthenium doping at Mn site and its MR effect. Journal of Solid State Chemistry, 258. 191 - 200. ISSN 0022-4596; ESSN: 1095-726X https://www.sciencedirect.com/science/article/pii/S002245961730405X#! 10.1016/j.jssc.2017.10.007 |
| spellingShingle | E., Elyana Mohamed, Zakiah Ahmad Kamil, Suraya Supardan, Siti Nurbaya Chen, S. K. Yahya, A. K. Revival of ferromagnetic behavior in charge-ordered Pr0.75Na0.25MnO3 manganite by ruthenium doping at Mn site and its MR effect |
| title | Revival of ferromagnetic behavior in charge-ordered Pr0.75Na0.25MnO3 manganite by ruthenium doping at Mn site and its MR effect |
| title_full | Revival of ferromagnetic behavior in charge-ordered Pr0.75Na0.25MnO3 manganite by ruthenium doping at Mn site and its MR effect |
| title_fullStr | Revival of ferromagnetic behavior in charge-ordered Pr0.75Na0.25MnO3 manganite by ruthenium doping at Mn site and its MR effect |
| title_full_unstemmed | Revival of ferromagnetic behavior in charge-ordered Pr0.75Na0.25MnO3 manganite by ruthenium doping at Mn site and its MR effect |
| title_short | Revival of ferromagnetic behavior in charge-ordered Pr0.75Na0.25MnO3 manganite by ruthenium doping at Mn site and its MR effect |
| title_sort | revival of ferromagnetic behavior in charge ordered pr0 75na0 25mno3 manganite by ruthenium doping at mn site and its mr effect |
| url | http://psasir.upm.edu.my/id/eprint/73806/1/Revival%20of%20ferromagnetic%20behavior%20.pdf |
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