Impact of ag-doped on the ferromagnetic-metallic transition in Pr0.75Na0.25mno3 manganites
Monovalent doped Pr0.75Na0.25-yAgyMnO3 (y = 0–0.10) manganite have been investigated using X-ray diffraction (XRD) and scanning electron microscope (SEM) as well as DC electrical resistivity and AC susceptibility measurement to clarify the influence of Ag- doped on charge ordering (CO) state. XRD an...
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| Format: | Article |
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Science Publishing Corporation
2018
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| Online Access: | http://eprints.uthm.edu.my/4382/ |
| _version_ | 1848888272570286080 |
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| author | Khairulzaman, N Ibrahim, N Shamsuddin, S |
| author_facet | Khairulzaman, N Ibrahim, N Shamsuddin, S |
| author_sort | Khairulzaman, N |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | Monovalent doped Pr0.75Na0.25-yAgyMnO3 (y = 0–0.10) manganite have been investigated using X-ray diffraction (XRD) and scanning electron microscope (SEM) as well as DC electrical resistivity and AC susceptibility measurement to clarify the influence of Ag- doped on charge ordering (CO) state. XRD analysis revealed all samples consists of essentially single phase and crystallized in an orthorhombic structure with space group Pnma. SEM images of Pr0.75Na0.25-yAgyMnO3 compound shows the successful substitution of Ag+ ions with the enhancement of the grains boundaries and sizes as well as the compaction of particles. On the other hand, resistivity and susceptibility measurements showed that the y = 0 sample exhibits insulating behavior and anti-ferromagnetic. Interestingly, the ferromagnetic-metallic transition was observed for y = 0.05 due to the revival of double-exchange (DE) mechanism as a result of weakening the Jahn-Teller effect which caused the CO state to be weakened. However, increasing of Ag-doped up to y = 0.10 induce back its transition into anti-ferromagnetic insulating behavior suggestively due to the weakening of DE mechanism. |
| first_indexed | 2025-11-15T20:07:39Z |
| format | Article |
| id | uthm-4382 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T20:07:39Z |
| publishDate | 2018 |
| publisher | Science Publishing Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uthm-43822021-12-02T04:13:44Z http://eprints.uthm.edu.my/4382/ Impact of ag-doped on the ferromagnetic-metallic transition in Pr0.75Na0.25mno3 manganites Khairulzaman, N Ibrahim, N Shamsuddin, S QC Physics Monovalent doped Pr0.75Na0.25-yAgyMnO3 (y = 0–0.10) manganite have been investigated using X-ray diffraction (XRD) and scanning electron microscope (SEM) as well as DC electrical resistivity and AC susceptibility measurement to clarify the influence of Ag- doped on charge ordering (CO) state. XRD analysis revealed all samples consists of essentially single phase and crystallized in an orthorhombic structure with space group Pnma. SEM images of Pr0.75Na0.25-yAgyMnO3 compound shows the successful substitution of Ag+ ions with the enhancement of the grains boundaries and sizes as well as the compaction of particles. On the other hand, resistivity and susceptibility measurements showed that the y = 0 sample exhibits insulating behavior and anti-ferromagnetic. Interestingly, the ferromagnetic-metallic transition was observed for y = 0.05 due to the revival of double-exchange (DE) mechanism as a result of weakening the Jahn-Teller effect which caused the CO state to be weakened. However, increasing of Ag-doped up to y = 0.10 induce back its transition into anti-ferromagnetic insulating behavior suggestively due to the weakening of DE mechanism. Science Publishing Corporation 2018 Article PeerReviewed Khairulzaman, N and Ibrahim, N and Shamsuddin, S (2018) Impact of ag-doped on the ferromagnetic-metallic transition in Pr0.75Na0.25mno3 manganites. International Journal of Engineering and Technology, 7 (4.3). pp. 68-71. ISSN 2227-524X |
| spellingShingle | QC Physics Khairulzaman, N Ibrahim, N Shamsuddin, S Impact of ag-doped on the ferromagnetic-metallic transition in Pr0.75Na0.25mno3 manganites |
| title | Impact of ag-doped on the ferromagnetic-metallic transition in Pr0.75Na0.25mno3 manganites |
| title_full | Impact of ag-doped on the ferromagnetic-metallic transition in Pr0.75Na0.25mno3 manganites |
| title_fullStr | Impact of ag-doped on the ferromagnetic-metallic transition in Pr0.75Na0.25mno3 manganites |
| title_full_unstemmed | Impact of ag-doped on the ferromagnetic-metallic transition in Pr0.75Na0.25mno3 manganites |
| title_short | Impact of ag-doped on the ferromagnetic-metallic transition in Pr0.75Na0.25mno3 manganites |
| title_sort | impact of ag-doped on the ferromagnetic-metallic transition in pr0.75na0.25mno3 manganites |
| topic | QC Physics |
| url | http://eprints.uthm.edu.my/4382/ |