Abstract
Flux pinning properties of lead doped Bi2212 single crystals and Bi2223 sintered bulks were improved by low level light rare earth (LRE) doping to the Sr-site. The dilute LRE doping effects were prominent below ~30 K for Bi(Pb)2212 single crystals and below ~60 K for Bi(Pb)2223 sintered bulks. These results suggest that effective point-defect-type pinning sites were successfully introduced by small amount of LRE-doping. The improvement of flux pinning properties by dilute LRE-doping was the most remarkable when the carrier doping state was nearly optimal and the LRE doping level was ~0.5% for Sr-site.
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
