Structural and superconducting properties of YBa2Cu3-xMxOy (M=Ag, Al)
Samples of YBa2Cu3-xAgxOy with x=0, 0.1, 0.15, 0.2, 0.3 and samples of YBa2Cu3-xAlxOy with x=0, 0.01, 0.02, 0.03 and 0.045 are prepared by the sol-gel method. Structural and superconducting properties of samples are studied by electrical resistivity (R-T), X-ray diffraction (XRD) and scanning elec...
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Isfahan University of Technology
2009-08-01
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doaj-152e5fdfbde242bcb61db996285b4eaf2020-11-24T20:48:08ZengIsfahan University of TechnologyIranian Journal of Physics Research1682-69572009-08-01914347Structural and superconducting properties of YBa2Cu3-xMxOy (M=Ag, Al)S FalahatiF SaebV Daadmehr Samples of YBa2Cu3-xAgxOy with x=0, 0.1, 0.15, 0.2, 0.3 and samples of YBa2Cu3-xAlxOy with x=0, 0.01, 0.02, 0.03 and 0.045 are prepared by the sol-gel method. Structural and superconducting properties of samples are studied by electrical resistivity (R-T), X-ray diffraction (XRD) and scanning electron microscopy (SEM). All the samples show transition to superconducting state and the transition temperatures of the samples increased with increasing Ag doping up to x=0.15. R-T measurements show a small decrease of TC (zero) with increasing Al doping up to x=0.02, and followed by a faster decrease with increasing doping concentration. YBCO grains are better linked with increasing Ag doping. So, Ag has positive effects in superconducting properties of YBCO. The crystal structure of samples was refined by MAUD. These results show tha, Ag is substituted for Cu(1) in YBCO. According to these analysis, we introduce x=0.15 as the optimum value for doping concentration . http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-380&slc_lang=en&sid=1YBCO superconductorAg and Al dopingsol-gelweak links |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
S Falahati F Saeb V Daadmehr |
spellingShingle |
S Falahati F Saeb V Daadmehr Structural and superconducting properties of YBa2Cu3-xMxOy (M=Ag, Al) Iranian Journal of Physics Research YBCO superconductor Ag and Al doping sol-gel weak links |
author_facet |
S Falahati F Saeb V Daadmehr |
author_sort |
S Falahati |
title |
Structural and superconducting properties of YBa2Cu3-xMxOy (M=Ag, Al) |
title_short |
Structural and superconducting properties of YBa2Cu3-xMxOy (M=Ag, Al) |
title_full |
Structural and superconducting properties of YBa2Cu3-xMxOy (M=Ag, Al) |
title_fullStr |
Structural and superconducting properties of YBa2Cu3-xMxOy (M=Ag, Al) |
title_full_unstemmed |
Structural and superconducting properties of YBa2Cu3-xMxOy (M=Ag, Al) |
title_sort |
structural and superconducting properties of yba2cu3-xmxoy (m=ag, al) |
publisher |
Isfahan University of Technology |
series |
Iranian Journal of Physics Research |
issn |
1682-6957 |
publishDate |
2009-08-01 |
description |
Samples of YBa2Cu3-xAgxOy with x=0, 0.1, 0.15, 0.2, 0.3 and samples of YBa2Cu3-xAlxOy with x=0, 0.01, 0.02, 0.03 and 0.045 are prepared by the sol-gel method. Structural and superconducting properties of samples are studied by electrical resistivity (R-T), X-ray diffraction (XRD) and scanning electron microscopy (SEM). All the samples show transition to superconducting state and the transition temperatures of the samples increased with increasing Ag doping up to x=0.15. R-T measurements show a small decrease of TC (zero) with increasing Al doping up to x=0.02, and followed by a faster decrease with increasing doping concentration. YBCO grains are better linked with increasing Ag doping. So, Ag has positive effects in superconducting properties of YBCO. The crystal structure of samples was refined by MAUD. These results show tha, Ag is substituted for Cu(1) in YBCO. According to these analysis, we introduce x=0.15 as the optimum value for doping concentration . |
topic |
YBCO superconductor Ag and Al doping sol-gel weak links |
url |
http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-380&slc_lang=en&sid=1 |
work_keys_str_mv |
AT sfalahati structuralandsuperconductingpropertiesofyba2cu3xmxoymagal AT fsaeb structuralandsuperconductingpropertiesofyba2cu3xmxoymagal AT vdaadmehr structuralandsuperconductingpropertiesofyba2cu3xmxoymagal |
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