Effect of ZrO2 addition on microstructure, transport and magnetic properties of Bi2Sr2CaCu2O8+delta system
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Dosyalar
Tarih
2013
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The influence of zirconium (Zr) addition to the Bi2Sr2CaCu2O8+delta (Bi2212) system on its phase formation, microstructure, transport, and magnetic properties is investigated. Samples have been characterized by means of X-ray diffraction analysis (XRD), scanning electron microscopy equipped with energy dispersive of X-ray analysis (SEM/EDX), and resistivity versus temperature measurement. The results show an increase of the critical temperature of superconductive transition T (c) for x=0.01 and in all the samples containing Zr the Bi2212 phase is the majority. SEM observations show whiskers grains randomly distributed and microstructural change due to the addition of Zr. Resistivity measurement show that the temperature of the onset of transition T (c) increases by 9 K for x=0.005, 0.02, and 5 K for x=0.01 of ZrO2. An improvement of the normal state conductivity is obtained for the lowest content of Zr (x=0.005). In the normal state, all the samples exhibit a metallic behavior except the sample with x=0.01, which exhibit a semiconductor character.
Açıklama
3rd International Conference on Superconductivity and Magnetism (ICSM) -- APR 29-MAY 04, 2012 -- Istanbul, TURKEY
Anahtar Kelimeler
ZrO2 particle doped Bi2212, Electrical Properties, High Temperature Cuprates, Superconductivity, Normal State
Kaynak
Journal Of Superconductivity And Novel Magnetism
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
26
Sayı
4
