Experimental observation of a superconducting phase with
8.5 K in large-angle bismuth bicrystals
Gitsu D. V., Grozav A. D., Kistol V. G., Leporda N. I., Muntyanu F. M.
Superconducting inclusions with a transition temperature Tc ~ 8.5 K, an upper critical field Η ]2 ~ 25 kOe, and a coherence length ξ~ 120 A have been observed near the joining surface of large-angle bicrystals (32°<0<62°) of bismuth.