Order parameter effect critical fields and current of Y1–xPrx:123 superconductors

Sedky, A.; Amin, S. A.

doi:10.1515/msp-2018-0004

Artykuł - szczegóły

Tytuł artykułu

Order parameter effect critical fields and current of Y1–xPrx:123 superconductors

Autorzy

Sedky A. , Amin S. A.

Wybrane pełne teksty z tego czasopisma

Identyfikatory

DOI

10.1515/msp-2018-0004

Warianty tytułu

Języki publikacji

Abstrakty

Fluctuation induced conductivity by Pr substitution at Y sites of Y_1-xPr_x:123 superconductors is reported. It is found that the mean field temperature T_c^mf, deduced from the peak of dρ/dT versus T plot, gradually decreases by increasing Pr up to 0.40. The order parameter dimensionality (OPD) is estimated from the slope of the logarithmic plot between excess conductivity Δσ and reduced temperature є. Interestingly, the crossover from 2D to 3D is obtained for samples with Pr = 0.00, 0.10 and 0.20, while with increasing Pr up to 0.40, the crossover from 0D to quasi-2D is obtained. On the other hand, the calculated values of interlayer coupling, coherence lengths, critical fields and critical current decrease with increasing Pr up to 0.20, but with the further increase of Pr, up to 0.40, they increase. The hole carriers/Cu ions anisotropy and G-L parameter gradually increase with Pr up to 0.40. Our results are discussed in terms of the effects of Pr substitution at Y site, such as oxygen rearrangements, anisotropy, hybridization and localization of holes in the overdoped region.

Słowa kluczowe

fluctuation order parameters excess conductivity hole carriers

Wydawca

De Gruyter

Czasopismo

Materials Science Poland

Rocznik

2017

Tom

Vol. 35, No. 4

Strony

838--845

Opis fizyczny

Bibliogr. 46 poz., rys., tab.

Twórcy

autor

Sedky A.

sedky1960@yahoo.com

Physics Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt

autor

Amin S. A.

Physics Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-319cd151-3345-47a1-8a26-a670c4a20f26