Abstract
The weight change of Bi-2212 single-crystalline samples as a function of temperature, time and surrounding atmosphere was investigated by a classical thermogravimetric technique. Clear evidence for a correlation between T c and the c-axis lattice parameter was obtained. A plateau was observed in the dependence of T c and the c-axis lattice parameter on the oxygen contents. From the size dependence it was concluded that oxygen out-diffusion takes place in the a-b plane in a quite anisotropic way, i.e. mainly along the a-direction. At 500°C D a / D b ≥5–6, D ab ≈6.12×10 -8 cm 2/ s.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
