Superconductivity with a maximumTc, zero of 58 K forx > 0·75 has been observed in a nominal starting composition, ThxTl2Sr2Ca2Cu3Oy. X-ray data show that the 1212 phase gets stabilized due to part substitution of Th at the Tl-site forx⩾0·25; however,Tc is low forx<0·75.
Volume 43, 2020
Continuous Article Publishing mode
Click here for Editorial Note on CAP Mode