High-Tc superconductivity in the Tl-Ba-Ca-Cu-O ceramic
Boiko B. B. , Akimov A. I. , Gatal'skaya V. I., Dem'yanov S. E., Karpei A. L., Kurochkin A. L., Leonovich Yu. N. , Letko A. K., Muraya M. N. , Petrovskii M. L., Plevako A. N., Poluchankina L. P., Polyakova T. V., Romanenko Z. A., Stribuk E. K., Starchenko I. M.
The results of an experimental study of high-Tc superconductivity of the ceramic Tlj 4 BaCaCuLS Oy, synthesized under various conditions, are stable and reproducible. The highest critical temperature obtained by us for this system is T°c = 125.3 K.