Study of the fluctuation conductivity in YBCO thin film with low transition temperatures

✍ Scribed by L. Alvarez Miño

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 326 KB
• Volume: 39
• Category: Article
• ISSN: 0026-2692
• DOI: 10.1016/j.mejo.2008.01.077

✦ Synopsis

An insulating YBa 2 Cu 3 O 7Àd (YBCO) thin film was grown by inverted cylindrical magnetron (ICM) sputtering and under nitrogen cooling instead of oxygen in situ annealing. This insulating film went through different annealing processes in flowing oxygen, each time with increasing annealing temperature. The resistivity as a function of temperature was measured after each annealing. The fluctuation conductivity s 0 ðTÞ is determined from the resistivity data and an analysis of the possible mechanisms for scattering of the fluctuating pairs is presented in this work. The crystal structure of the film through these different steps is also reported.