The properties of Nb-doped YBa,Cu,O, ceramics obtained by thermolysis of the oxide or nitrate (Y, Ba, Cu) solution in ammonium nitrate melt were studied. For t h e composition YBa,Cu,~,Nb,,,,O,., , T, = 92 K and the transport critical current J , = 100&4000 A cm? were obtained. The magnetic flux profile was studied by a magneto-optic method at B = 290 G. Domains of size 200400 fin-were found with magnetic critical current J," = 2 x lo4 A cm-2 at 77 K and IO5 A cm-2 at 11 K.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.