Conduction in Y1-xScxBa2Cu 3Oy
Küçük Resim Yok
Tarih
2005
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Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Electrical conduction in Y1-xScxBa2Cu 3Oy prepared in the range of x = 0.0 -1.0 was investigated. X-ray, infrared spectroscopy and electron microscope inspections were employed to developan understanding for the structural properties of the samples. The results indicate that all the samples were multiphase even at x: = 0.1 due to probably the low solubility of Sc in YBa2Cu 3Oy. The samples were found to be the mixtures of semiconductive and superconductive phases, the ratio of which determines the critical temperature, Tc, the resistance and temperature dependence of the resistance. Tc varied within a narrow range of 10 K until the semiconductivity appears at x = 0.9. It was argued that the Y 1-x;ScsBa2Cu3O3 samples show semiconducting transition at Sc content higher than the percolation threshold. Hopping mechanisms were found to be responsible for the conduction in Y0.1Sc0.9Ba2Cu30y. In Which the Density of States at the Fermi Level Was Obtained As 6.0 10 21 m-3eV-1. © Institute of Physics, SAS, Bratislava, Slovakia.
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Kaynak
Acta Physica Slovaca
WoS Q Değeri
Scopus Q Değeri
Q4
Cilt
55
Sayı
2
