DE Morris,
JH Nickel, JYT Wei, NG Asmar, JS Scott… - Physical Review B, 1989 - APS
New high-temperature superconducting compounds R Ba 2 Cu 4 O 8 (R= Nd, Sm, Eu, Gd,
Dy, Ho, Er, and Tm) which share the 1: 2: 4 structure of YBa 2 Cu 4 O 8 are bulk synthesized …