Surface resistance of RE123 films with artificial pinning centers

✍ Scribed by M. Mukaida; A. Saito; R. Kita; K. Matsumoto; A. Ichinose; Y. Yoshida; S. Horii; K. Yamada; N. Mori

• Book ID: 103889715
• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 298 KB
• Volume: 445-448
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2006.05.074

✦ Synopsis

Effects of artificial pinning centers (APCs) into ErBa 2 Cu 3 O 7Àd films are discussed. The APCs used in this paper is BaZrO 3 and Zn which are mixed into ErBa 2 Cu 3 O 7Àd ceramic targets. The targets with various contents of APCs are ablated and films are grown on substrates with the APCs. X-ray diffraction patterns show there are no other phases than ErBa 2 Cu 3 O 7Àd and APCs. Transmission electron microscopy (TEM) shows the BaZrO 3 APSs grow along the c-axis of the films. The introduction of APCs decreases surface resistance (R S ) of ErBa 2 Cu 3 O 7Àd films and increases critical current density (J C ) of the films. R S measurements revealed that the ErBa 2 Cu 3 O 7Àd films with APCs showed a lower R S than that of the ErBa 2 Cu 3 O 7Àd films without APCs.