Structural and Superconducting Properties of Magnetically Doped Bi-2212 Textured Rods Grown by Laser Floating Zone (LFZ) Technique
Küçük Resim Yok
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this work, we have applied the laser floating zone technique, a well-known method to produce highly aligned crystals and dense morphology, with improved transport properties, to obtain Bi2Sr2Ca1Cu2-x Ni (x) O (x=0, 0.01, 0.03, 0.05 and 0.1) fibers of about 1.8 mm diameter x12 cm length. Microstructural and magnetic properties of textured materials grown in the optimum conditions were analyzed through scanning electron microscope (SEM), energy dispersive X-ray analysis (EDX), powder XRD patterns, M-T and M-H loops. XRD analysis showed that addition of Ni at x=0.1 level caused the formation of small amounts of Bi-2201 phase. Thermal treatment has produced the agglomeration of Ni particles up to a few mu m, detected by dot mapping EDX. Both T (c-onset) and J (cmag) values of the annealed rods decreased with the increasing Ni substitution rate, determined from the M-T and M-H loops, respectively.
Açıklama
3rd International Conference on Superconductivity and Magnetism (ICSM) -- APR 29-MAY 04, 2012 -- Istanbul, TURKEY
Anahtar Kelimeler
Bi-2212, Textured material, Floating zone, Magnetic substitution
Kaynak
Journal of Superconductivity and Novel Magnetism
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
26
Sayı
4
