A new cubic perovskite La4+xBa1−xCu5O12+δ thin film deposited by laser ablation and used in multilayer structures with YBCO

✍ Scribed by R. Desfeux; J.F. Hamet; B. Mercey; Ch. Simon; M. Hervieu; B. Raveau

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 199 KB
• Volume: 235-240
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(94)91575-x

✦ Synopsis

A new cubic perovskite La4+xBal.xCu5012+8 (LBCO) with a --3.87]k has been stabilized by laser deposition in the form of thin film on MgO (001) and LaAIO3 (001) single crystals as substrate. A metallic behavior of the LBCO film is observed with a conductivity of 104 (~cm) -1 at 77K. The multilayer structure (YBCO/LBCO/YBCO) deposited on MgO or LaA103 exhibits a ~ axis orientation with Tc (R = 0) --87K or 90K respectively. The superconducting properties of both YBCO layers of the structure have been checked by SQUID measurements.