Changes in doping state of (Tl, Pb)Sr1212 superconductors with Yb substitution at Sr site
Samples with nominal starting compositions of Tl0.5Pb0.5Sr2−yYbyCaCu2O7 (y = 0–0.6) were synthesized using conventional solid-state synthesis method. Temperature dependent electrical resistance measurements on the series showed that the normal state behavior and superconducting properties can be con...
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Elsevier
2007
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| Online Access: | http://psasir.upm.edu.my/id/eprint/9415/ http://psasir.upm.edu.my/id/eprint/9415/1/Changes%20in%20doping%20state%20of%20%28Tl%2C%20Pb%29Sr1212%20superconductors%20with%20Yb%20substitution%20at%20Sr%20site.pdf |
| _version_ | 1848841140271316992 |
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| author | Yahya, Ahmad Kamal Abdullah, W.F. Hamadneh, Imad Jumali, Mohammad Hafizuddin |
| author_facet | Yahya, Ahmad Kamal Abdullah, W.F. Hamadneh, Imad Jumali, Mohammad Hafizuddin |
| author_sort | Yahya, Ahmad Kamal |
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| description | Samples with nominal starting compositions of Tl0.5Pb0.5Sr2−yYbyCaCu2O7 (y = 0–0.6) were synthesized using conventional solid-state synthesis method. Temperature dependent electrical resistance measurements on the series showed that the normal state behavior and superconducting properties can be controlled by adjusting Yb concentration to achieve maximum critical temperature (Tc). The best superconducting behavior for the series was observed for Tl0.5Pb0.5Sr1.8Yb0.2CaCu2O7 with onset critical temperature (Tc onset) of 105 K. Results of critical temperature (Tc) measurements, microstructure investigation using scanning electron microscope (SEM) and powder X-ray diffraction (XRD) analysis are presented. The effects of Yb substitutions are discussed in terms of Tc, Tl1212 phase formation and the concept of average Cu valence.
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| format | Article |
| id | upm-9415 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T07:38:30Z |
| publishDate | 2007 |
| publisher | Elsevier |
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| spelling | upm-94152015-11-11T02:52:18Z http://psasir.upm.edu.my/id/eprint/9415/ Changes in doping state of (Tl, Pb)Sr1212 superconductors with Yb substitution at Sr site Yahya, Ahmad Kamal Abdullah, W.F. Hamadneh, Imad Jumali, Mohammad Hafizuddin Samples with nominal starting compositions of Tl0.5Pb0.5Sr2−yYbyCaCu2O7 (y = 0–0.6) were synthesized using conventional solid-state synthesis method. Temperature dependent electrical resistance measurements on the series showed that the normal state behavior and superconducting properties can be controlled by adjusting Yb concentration to achieve maximum critical temperature (Tc). The best superconducting behavior for the series was observed for Tl0.5Pb0.5Sr1.8Yb0.2CaCu2O7 with onset critical temperature (Tc onset) of 105 K. Results of critical temperature (Tc) measurements, microstructure investigation using scanning electron microscope (SEM) and powder X-ray diffraction (XRD) analysis are presented. The effects of Yb substitutions are discussed in terms of Tc, Tl1212 phase formation and the concept of average Cu valence. Elsevier 2007-10-01 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/9415/1/Changes%20in%20doping%20state%20of%20%28Tl%2C%20Pb%29Sr1212%20superconductors%20with%20Yb%20substitution%20at%20Sr%20site.pdf Yahya, Ahmad Kamal and Abdullah, W.F. and Hamadneh, Imad and Jumali, Mohammad Hafizuddin (2007) Changes in doping state of (Tl, Pb)Sr1212 superconductors with Yb substitution at Sr site. Physica C: Superconductivity, 463-465. pp. 474-477. ISSN 0921-4534 http://dx.doi.org/10.1016/j.physc.2007.05.043 Superconductors 10.1016/j.physc.2007.05.043 English |
| spellingShingle | Superconductors Yahya, Ahmad Kamal Abdullah, W.F. Hamadneh, Imad Jumali, Mohammad Hafizuddin Changes in doping state of (Tl, Pb)Sr1212 superconductors with Yb substitution at Sr site |
| title | Changes in doping state of (Tl, Pb)Sr1212 superconductors with Yb substitution at Sr site |
| title_full | Changes in doping state of (Tl, Pb)Sr1212 superconductors with Yb substitution at Sr site |
| title_fullStr | Changes in doping state of (Tl, Pb)Sr1212 superconductors with Yb substitution at Sr site |
| title_full_unstemmed | Changes in doping state of (Tl, Pb)Sr1212 superconductors with Yb substitution at Sr site |
| title_short | Changes in doping state of (Tl, Pb)Sr1212 superconductors with Yb substitution at Sr site |
| title_sort | changes in doping state of (tl, pb)sr1212 superconductors with yb substitution at sr site |
| topic | Superconductors |
| url | http://psasir.upm.edu.my/id/eprint/9415/ http://psasir.upm.edu.my/id/eprint/9415/ http://psasir.upm.edu.my/id/eprint/9415/ http://psasir.upm.edu.my/id/eprint/9415/1/Changes%20in%20doping%20state%20of%20%28Tl%2C%20Pb%29Sr1212%20superconductors%20with%20Yb%20substitution%20at%20Sr%20site.pdf |