Improvement of High Tc Phase Formation in BPSCCO Superconductor by Adding Vanadium and Substituting Titanium
Küçük Resim Yok
Tarih
2011
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer/Plenum Publishers
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We have produced the (BiPb)(2)V (x) Sr2Ca3Cu4-y Ti (y) O12+delta with x=0.1 and y=0.050,0.10,0.2 and 0.3 compounds by melt-quenching method. Structural and superconducting properties of the produced samples were investigated by Scanning Electron Microscopy, X-ray diffraction patterns, electrical resistance measurements and dc-magnetic hysteresis loop measurements. The pure high-T (c) phase (2223) is nearly found with Ti substitution for x=0.05 and 0.10. The onset critical temperature (T (c).(onset)) of the samples increases up to 111 K with doping up to x=0.20. In addition, considerable large values of the critical current densities (J (c)), calculated from the hysteresis loop measurements by using Bean's critical state model are obtained for the samples in the same doping range. Our data have indicated that J (c) decreases with increasing temperature and Ti concentration.
Açıklama
Anahtar Kelimeler
Bi-based cuprates, XRD, Critical currents, Magnetic properties
Kaynak
Journal of Low Temperature Physics
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
163
Sayı
5-6
