Superconducting transition at 12.5 K in RbxC60

✍ Scribed by Hideyuki Funasaka; Koji Sakurai; Kenji Sugiyama; Kazunori Yamamoto; Takeshi Takahashi

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 431 KB
• Volume: 241
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(95)00628-h

✦ Synopsis

The effect of heat treatment of RbxCro (x = 3, 4, 5, and 6) on the superconducting transition has been studied with shielding diamagnetism measurements. For RbxC6o (x = 4, 5, and 6), a superconducting transition at 12.5 K appeared in the course of annealing treatment at 400°C and disappeared on further prolonged annealing, while a clear superconducting transition at 30 K due to the Rb3Ceo phase still remained. We speculate that this superconducting transition at 12.5 K is due to a certain phase which appears in the course of the annealing treatment.