Effect of Alᶟ⁺ substitutions at Cu-site and AI₂O₃ addition on ultrasonic velocities and elasticanomalies of EuBa₂Cu₃O₇-ᵟ superconductor / Mohd Muzammir Firdaus Abu Bakar
The ultrasonic longitudinal and shear velocities were measured in EuBa₂Cu₃O₇₋₈ (δ = 0.1 and 0.7), EuBa₂Cu₃₋ₓA1ₓO₇₋₈ (х = 0.06 and 0.1) and EuBa₂Cu₃O₇₋₈ + yA1₂O₃ (y = 0.2 and 0.1 wt%) superconductors in temperature ranges of 80-280K and 80-220K, respectively. For EuBa₂Cu₃O₇₋₈ (δ = 0.1 and 0.7), sampl...
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my-uitm-ir.184652022-04-21T02:02:23Z Effect of Alᶟ⁺ substitutions at Cu-site and AI₂O₃ addition on ultrasonic velocities and elasticanomalies of EuBa₂Cu₃O₇-ᵟ superconductor / Mohd Muzammir Firdaus Abu Bakar 2013-04 Abu Bakar, Mohd Muzammir Firdaus Q Science (General) QC Physics The ultrasonic longitudinal and shear velocities were measured in EuBa₂Cu₃O₇₋₈ (δ = 0.1 and 0.7), EuBa₂Cu₃₋ₓA1ₓO₇₋₈ (х = 0.06 and 0.1) and EuBa₂Cu₃O₇₋₈ + yA1₂O₃ (y = 0.2 and 0.1 wt%) superconductors in temperature ranges of 80-280K and 80-220K, respectively. For EuBa₂Cu₃O₇₋₈ (δ = 0.1 and 0.7), samples, the absolute velocity (at 80K) showed to decrease when the oxygen content was reduced from O6.9 to O6.3 . However, for EuBa₂Cu₃₋ₓA1ₓO₇₋₈ (х = 0.06 and 0.1)) samples, although both samples have same oxygen content (O6.8), the absolute velocity also showed to decrease when the amount of A1ᶟ⁺ increased… 2013-04 Thesis https://ir.uitm.edu.my/id/eprint/18465/ https://ir.uitm.edu.my/id/eprint/18465/2/TM_MOHD%20MUZAMMIR%20FIRDAUS%20ABU%20BAKAR%20AS%2013_5.pdf text en public mphil masters Universiti Teknologi MARA Faculty of Applied Sciences |
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English |
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Q Science (General) QC Physics |
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Q Science (General) QC Physics Abu Bakar, Mohd Muzammir Firdaus Effect of Alᶟ⁺ substitutions at Cu-site and AI₂O₃ addition on ultrasonic velocities and elasticanomalies of EuBa₂Cu₃O₇-ᵟ superconductor / Mohd Muzammir Firdaus Abu Bakar |
| description |
The ultrasonic longitudinal and shear velocities were measured in EuBa₂Cu₃O₇₋₈ (δ = 0.1 and 0.7), EuBa₂Cu₃₋ₓA1ₓO₇₋₈ (х = 0.06 and 0.1) and EuBa₂Cu₃O₇₋₈ + yA1₂O₃ (y = 0.2 and 0.1 wt%) superconductors in temperature ranges of 80-280K and 80-220K, respectively. For EuBa₂Cu₃O₇₋₈ (δ = 0.1 and 0.7), samples, the absolute velocity (at 80K) showed to decrease when the oxygen content was reduced from O6.9 to O6.3 . However, for EuBa₂Cu₃₋ₓA1ₓO₇₋₈ (х = 0.06 and 0.1)) samples, although both samples have same oxygen content (O6.8), the absolute velocity also showed to decrease when the amount of A1ᶟ⁺ increased… |
| format |
Thesis |
| qualification_name |
Master of Philosophy (M.Phil.) |
| qualification_level |
Master's degree |
| author |
Abu Bakar, Mohd Muzammir Firdaus |
| author_facet |
Abu Bakar, Mohd Muzammir Firdaus |
| author_sort |
Abu Bakar, Mohd Muzammir Firdaus |
| title |
Effect of Alᶟ⁺ substitutions at Cu-site and AI₂O₃ addition on ultrasonic velocities and elasticanomalies of EuBa₂Cu₃O₇-ᵟ superconductor / Mohd Muzammir Firdaus Abu Bakar |
| title_short |
Effect of Alᶟ⁺ substitutions at Cu-site and AI₂O₃ addition on ultrasonic velocities and elasticanomalies of EuBa₂Cu₃O₇-ᵟ superconductor / Mohd Muzammir Firdaus Abu Bakar |
| title_full |
Effect of Alᶟ⁺ substitutions at Cu-site and AI₂O₃ addition on ultrasonic velocities and elasticanomalies of EuBa₂Cu₃O₇-ᵟ superconductor / Mohd Muzammir Firdaus Abu Bakar |
| title_fullStr |
Effect of Alᶟ⁺ substitutions at Cu-site and AI₂O₃ addition on ultrasonic velocities and elasticanomalies of EuBa₂Cu₃O₇-ᵟ superconductor / Mohd Muzammir Firdaus Abu Bakar |
| title_full_unstemmed |
Effect of Alᶟ⁺ substitutions at Cu-site and AI₂O₃ addition on ultrasonic velocities and elasticanomalies of EuBa₂Cu₃O₇-ᵟ superconductor / Mohd Muzammir Firdaus Abu Bakar |
| title_sort |
effect of alᶟ⁺ substitutions at cu-site and ai₂o₃ addition on ultrasonic velocities and elasticanomalies of euba₂cu₃o₇-ᵟ superconductor / mohd muzammir firdaus abu bakar |
| granting_institution |
Universiti Teknologi MARA |
| granting_department |
Faculty of Applied Sciences |
| publishDate |
2013 |
| url |
https://ir.uitm.edu.my/id/eprint/18465/2/TM_MOHD%20MUZAMMIR%20FIRDAUS%20ABU%20BAKAR%20AS%2013_5.pdf |
| _version_ |
1783733686249717760 |