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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| Format: | Thesis |
| Language: | English |
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2013
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| Online Access: | https://ir.uitm.edu.my/id/eprint/18465/ |
| _version_ | 1848804537572261888 |
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| author | Abu Bakar, Mohd Muzammir Firdaus |
| author_facet | Abu Bakar, Mohd Muzammir Firdaus |
| author_sort | Abu Bakar, Mohd Muzammir Firdaus |
| building | UiTM Institutional Repository |
| collection | Online Access |
| 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… |
| first_indexed | 2025-11-14T21:56:43Z |
| format | Thesis |
| id | uitm-18465 |
| institution | Universiti Teknologi MARA |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T21:56:43Z |
| publishDate | 2013 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uitm-184652024-05-31T00:33:15Z https://ir.uitm.edu.my/id/eprint/18465/ Effect of Alᶟ⁺ substitutions at Cu-site and AI₂O₃ addition on ultrasonic velocities and elasticanomalies of EuBa₂Cu₃O₇-ᵟ superconductor / Mohd Muzammir Firdaus Abu Bakar 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 NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/18465/3/18465.pdf Abu Bakar, Mohd Muzammir Firdaus (2013) 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) Masters thesis, thesis, Universiti Teknologi MARA. <http://terminalib.uitm.edu.my/18465.pdf> |
| spellingShingle | 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 |
| 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_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_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_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 |
| topic | Q Science (General) QC Physics |
| url | https://ir.uitm.edu.my/id/eprint/18465/ |