Superconducting properties of Y(Ba1-xCax)2Cu3O7-δ (0 ≤ x ≤ 0.05) system
A series of polycrystalline compounds with a nominal composition of Y(Ba1‐xCax)2Cu3O7−δ (0⩽x⩽0.05) had been synthesized using solid state reaction method. Crystal structure of those samples was characterized by Rietveld refinement on the x‐ray powder diffraction data. It was found that the structura...
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| Format: | Conference or Workshop Item |
| Language: | English |
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American Institute of Physics
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/57333/ http://psasir.upm.edu.my/id/eprint/57333/1/57333.pdf |
| _version_ | 1848853335762796544 |
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| author | Wan Shaaidi, Wan Nurul Ain Lim, Kean Pah Matori, Khamirul Amin Saion, Elias Shaari, Abdul Halim Chen, Soo Kien |
| author_facet | Wan Shaaidi, Wan Nurul Ain Lim, Kean Pah Matori, Khamirul Amin Saion, Elias Shaari, Abdul Halim Chen, Soo Kien |
| author_sort | Wan Shaaidi, Wan Nurul Ain |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A series of polycrystalline compounds with a nominal composition of Y(Ba1‐xCax)2Cu3O7−δ (0⩽x⩽0.05) had been synthesized using solid state reaction method. Crystal structure of those samples was characterized by Rietveld refinement on the x‐ray powder diffraction data. It was found that the structural parameters were not changed appreciably with Ca content in Y(Ba1‐xCax)2Cu3O7−δ. While c‐axis remained almost unchanged, both a and b axes decreased slightly leading to the decrease in orthorhombicity of Y‐123 phase. The superconducting transition temperature, Tc was determined by measuring the change of electrical resistance versus temperature (50 K–300 K) using a four point probe technique. The Tc was observed to decrease gradually by Ca doping from 91 K for x = 0.00 to 88 K for x = 0.05 attributable to oxygen vacancy disorder. In addition, the superconducting transition breadth, ΔT, increased with Ca doping because of degraded crystallinity or inhomogeneity of the samples. Finally, scanning electron micrographs indicated grain growth induced by Ca doping. |
| first_indexed | 2025-11-15T10:52:21Z |
| format | Conference or Workshop Item |
| id | upm-57333 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:52:21Z |
| publishDate | 2010 |
| publisher | American Institute of Physics |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-573332017-09-26T04:07:10Z http://psasir.upm.edu.my/id/eprint/57333/ Superconducting properties of Y(Ba1-xCax)2Cu3O7-δ (0 ≤ x ≤ 0.05) system Wan Shaaidi, Wan Nurul Ain Lim, Kean Pah Matori, Khamirul Amin Saion, Elias Shaari, Abdul Halim Chen, Soo Kien A series of polycrystalline compounds with a nominal composition of Y(Ba1‐xCax)2Cu3O7−δ (0⩽x⩽0.05) had been synthesized using solid state reaction method. Crystal structure of those samples was characterized by Rietveld refinement on the x‐ray powder diffraction data. It was found that the structural parameters were not changed appreciably with Ca content in Y(Ba1‐xCax)2Cu3O7−δ. While c‐axis remained almost unchanged, both a and b axes decreased slightly leading to the decrease in orthorhombicity of Y‐123 phase. The superconducting transition temperature, Tc was determined by measuring the change of electrical resistance versus temperature (50 K–300 K) using a four point probe technique. The Tc was observed to decrease gradually by Ca doping from 91 K for x = 0.00 to 88 K for x = 0.05 attributable to oxygen vacancy disorder. In addition, the superconducting transition breadth, ΔT, increased with Ca doping because of degraded crystallinity or inhomogeneity of the samples. Finally, scanning electron micrographs indicated grain growth induced by Ca doping. American Institute of Physics 2010 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/57333/1/57333.pdf Wan Shaaidi, Wan Nurul Ain and Lim, Kean Pah and Matori, Khamirul Amin and Saion, Elias and Shaari, Abdul Halim and Chen, Soo Kien (2010) Superconducting properties of Y(Ba1-xCax)2Cu3O7-δ (0 ≤ x ≤ 0.05) system. In: Malaysia Annual Physics Conference 2010 (PERFIK‐2010), 27-30 Oct. 2010, Damai Laut, Perak, Malaysia. (pp. 257-260). 10.1063/1.3573747 |
| spellingShingle | Wan Shaaidi, Wan Nurul Ain Lim, Kean Pah Matori, Khamirul Amin Saion, Elias Shaari, Abdul Halim Chen, Soo Kien Superconducting properties of Y(Ba1-xCax)2Cu3O7-δ (0 ≤ x ≤ 0.05) system |
| title | Superconducting properties of Y(Ba1-xCax)2Cu3O7-δ (0 ≤ x ≤ 0.05) system |
| title_full | Superconducting properties of Y(Ba1-xCax)2Cu3O7-δ (0 ≤ x ≤ 0.05) system |
| title_fullStr | Superconducting properties of Y(Ba1-xCax)2Cu3O7-δ (0 ≤ x ≤ 0.05) system |
| title_full_unstemmed | Superconducting properties of Y(Ba1-xCax)2Cu3O7-δ (0 ≤ x ≤ 0.05) system |
| title_short | Superconducting properties of Y(Ba1-xCax)2Cu3O7-δ (0 ≤ x ≤ 0.05) system |
| title_sort | superconducting properties of y(ba1-xcax)2cu3o7-δ (0 ≤ x ≤ 0.05) system |
| url | http://psasir.upm.edu.my/id/eprint/57333/ http://psasir.upm.edu.my/id/eprint/57333/ http://psasir.upm.edu.my/id/eprint/57333/1/57333.pdf |