Growth of superconducting single-crystalline (Lu, Ca)Ba2Cu3O7-d whiskers
  Single-crystalline (Lu, Ca)Ba2Cu3O7-d (Lu(Ca)123) whiskers have been successfully grown using the Te-doping method. X-ray diffraction patterns of Lu(Ca)123 whiskers showed sharp (0 0 l) peaks corresponding to REBa2Cu3O7-d phase (RE = rare earth elements). Transport measurements showed that the superconducting transition occurred at 83 K in the obtained whiskers. 
K. Deguchi, S. Ogawara, T. Okutsu, M. Nagao, T. Watanabe, Y.   Mizuguchi, Y. Kubo, F. Tomioka, S. Ishii, S. Tsuda, T. Yamagu...