The Effect of Ag Doping on the Superconducting Properties of Y3Ba5Cu8-xAgxO18-delta Ceramics
Küçük Resim Yok
Tarih
2017
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The influence of Ag doping on the microstructural and superconducting properties of Y3Ba5Cu8O18-delta (Y358) was investigated by means of resistance-temperature ( R-T), ac magnetic susceptibility (chi-T), and X-ray diffraction (XRD) measurements. Five different Y3Ba5Cu8-x AgxO18-delta (Ag-Y358) bulk ceramic samples were prepared by employing a standard solid-state reaction method with different amounts of Ag doping (x = 0.0, 0.1, 0.2, 0.3, 0.4, and 0.5, respectively). The X-ray patterns revealed that all samples corresponded to the orthorhombic Y3Ba5Cu8O18-delta phase. The transition temperature of Ag-Y358 samples was enhanced from 95 to 97 K with the increase of Ag doping concentration (up to x = 0.1). However, when the Ag content exceeded x = 0.3 value, the transition temperature of the samples decreased to below 95.6 K. It was found that excess Ag particles filled into the pores of the structure and caused the deterioration of the superconducting properties.
Açıklama
Anahtar Kelimeler
YBCO superconductor, Ag-doping, Superconducting properties
Kaynak
Journal of Superconductivity and Novel Magnetism
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
30
Sayı
4
