On the origin of hole formation in YBCO films

Autor: Ralph Krupke, Z. Barkay, Guy Deutscher
Rok vydání: 1997
Předmět:
Zdroj: Physica C: Superconductivity. 289:146-150
ISSN: 0921-4534
Popis: Thin Y1Ba2Cu3O7−x films with c-axis orientation were deposited on LaAlO3, YSZ and MgO in an rf-sputtering system using a single YBCO-target in off-axis geometry. After many growths the Tc of the films degraded and holes appeared at their surface. A correlation was found between the appearance of holes, an yttrium rich film composition and the secondary phase Y2O3.
Databáze: OpenAIRE