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The Variation of Superconducting Critical Temperature of the Mn3O4 Doped- and Mn3O4 Composited-Y145 Superconductor |
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| รหัสดีโอไอ | |
| Creator | Anongdavone Ponchanthai |
| Title | The Variation of Superconducting Critical Temperature of the Mn3O4 Doped- and Mn3O4 Composited-Y145 Superconductor |
| Contributor | Tunyanop Nilkamjon, Supphadate Sujinnaparm, Thitipong Kruaehong, Somporn Tiyasri, Wirat Wongphakdee, Pongkaew Udomsamuthirun |
| Publisher | Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi |
| Publication Year | 2563 |
| Journal Title | Progress in Applied Science and Technology |
| Journal Vol. | 10 |
| Journal No. | 2 |
| Page no. | 28-36 |
| Keyword | Superconductor, Y145 doped with Manganese Oxide, Critical temperature, Solid-state reaction |
| URL Website | https://ph02.tci-thaijo.org/index.php/stj-rmutt/index |
| Website title | Progress in Applied Science and Technology |
| ISSN | 2730-3020 |
| Abstract | The Y145 superconductors modified with manganese oxide (Mn3O4) were synthesized via the solid-state reaction by using the Mn3O4 with various concentrations of dopant. Our research focused on the investigations of the physical and structural properties in the doping materials and the composite materials preparations. The SEM and EDX were determined the surfaces of materials and the identifications of elements. The XRD patterns were indicated for the microstructure of these samples. The critical temperature (TC) of the samples was measured by the four-point probe resistivity measurements. The Cu2+, Cu3+, and oxygen content were investigated by Iodometric titration. The results revealed that the influence of different concentrations of Mn3O4 was significantly on the increase of the TC as increasing the Mn content in both processes. The SEM and ERD showed that the grain size of the doping samples changed slightly in comparison with the composite samples in most samples. The XRD demonstrated that the crystal structure was in the orthorhombicity. The Iodometric titration indicated that the ratio of Cu3+/Cu2+ depended on the TC, which was rather linear dependence. The increase of TC with increasing concentrations of Mn3O4 could be due to the hole filling in the CuO2 planes. |
