AC losses in Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductors
Measurements of complex AC susceptibility χ = χ + χ as a function of temperature have been carried out on Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductor samples prepared via the conventional solid state reaction method. All the samples exhibit perfect diamagnetism below 109 K. The χ (T) curve...
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| Format: | Article |
| Language: | English |
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Trans Tech Publications
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/36309/ http://psasir.upm.edu.my/id/eprint/36309/1/AC%20losses%20in%20Sn-doped%20Bi1.6P.pdf |
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| author | Hashim @ Ismail, Azhan Shaari, Abdul Halim Ahmad @ Muhamad, Nazree Kassim, Azman Senawi, Syamsyir Akmal |
| author_facet | Hashim @ Ismail, Azhan Shaari, Abdul Halim Ahmad @ Muhamad, Nazree Kassim, Azman Senawi, Syamsyir Akmal |
| author_sort | Hashim @ Ismail, Azhan |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Measurements of complex AC susceptibility χ = χ + χ as a function of temperature have been carried out on Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductor samples prepared via the conventional solid state reaction method. All the samples exhibit perfect diamagnetism below 109 K. The χ (T) curves display two-step features, indicating the presence of mixed phases and therefore weakening of the grains' coupling. The amount of shielded volume in Sn-free samples is greater than that in Sn-doped samples. The intrinsic peak due to the small AC losses within the grain was not observed in the χ (T) curves for all samples. However, the coupling peak, TP, for Sn-free samples at an applied field of 1.0 Oe was observed at 89 K and shifted to a lower temperature ranging from 59 K to 64.2 K in Sn-doped samples. The amounts of hysteresis losses above the TP in all doped samples were smaller than that of the Sn-free sample. Therefore, the effect of Sn doping suppressed the inter-granular critical current, Jcm, and the presence of weak links that coupled the superconducting grains. |
| first_indexed | 2025-11-15T09:32:14Z |
| format | Article |
| id | upm-36309 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:32:14Z |
| publishDate | 2014 |
| publisher | Trans Tech Publications |
| recordtype | eprints |
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| spelling | upm-363092018-10-11T07:36:16Z http://psasir.upm.edu.my/id/eprint/36309/ AC losses in Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductors Hashim @ Ismail, Azhan Shaari, Abdul Halim Ahmad @ Muhamad, Nazree Kassim, Azman Senawi, Syamsyir Akmal Measurements of complex AC susceptibility χ = χ + χ as a function of temperature have been carried out on Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductor samples prepared via the conventional solid state reaction method. All the samples exhibit perfect diamagnetism below 109 K. The χ (T) curves display two-step features, indicating the presence of mixed phases and therefore weakening of the grains' coupling. The amount of shielded volume in Sn-free samples is greater than that in Sn-doped samples. The intrinsic peak due to the small AC losses within the grain was not observed in the χ (T) curves for all samples. However, the coupling peak, TP, for Sn-free samples at an applied field of 1.0 Oe was observed at 89 K and shifted to a lower temperature ranging from 59 K to 64.2 K in Sn-doped samples. The amounts of hysteresis losses above the TP in all doped samples were smaller than that of the Sn-free sample. Therefore, the effect of Sn doping suppressed the inter-granular critical current, Jcm, and the presence of weak links that coupled the superconducting grains. Trans Tech Publications 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/36309/1/AC%20losses%20in%20Sn-doped%20Bi1.6P.pdf Hashim @ Ismail, Azhan and Shaari, Abdul Halim and Ahmad @ Muhamad, Nazree and Kassim, Azman and Senawi, Syamsyir Akmal (2014) AC losses in Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductors. Advanced Materials Research, 895. pp. 99-104. ISSN 1022-6680; ESSN: 1662-8985 http://www.scientific.net/AMR.895.99 10.4028/www.scientific.net/AMR.895.99 |
| spellingShingle | Hashim @ Ismail, Azhan Shaari, Abdul Halim Ahmad @ Muhamad, Nazree Kassim, Azman Senawi, Syamsyir Akmal AC losses in Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductors |
| title | AC losses in Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductors |
| title_full | AC losses in Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductors |
| title_fullStr | AC losses in Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductors |
| title_full_unstemmed | AC losses in Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductors |
| title_short | AC losses in Sn-doped Bi1.6Pb0.4Sr2(Ca1-xSnx)2Cu3Oδ superconductors |
| title_sort | ac losses in sn-doped bi1.6pb0.4sr2(ca1-xsnx)2cu3oδ superconductors |
| url | http://psasir.upm.edu.my/id/eprint/36309/ http://psasir.upm.edu.my/id/eprint/36309/ http://psasir.upm.edu.my/id/eprint/36309/ http://psasir.upm.edu.my/id/eprint/36309/1/AC%20losses%20in%20Sn-doped%20Bi1.6P.pdf |