Characterization of YBCO films by torque magnetometry

✍ Scribed by W. Andrä; J. Betz; B. Brunner; R. Hergt; H. Lengfellner; K.F. Renk; K. Steenbeck

• Book ID: 103943992
• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 245 KB
• Volume: 180
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(91)90663-j

✦ Synopsis

CHARACTERIZATION OF YSCO FILMS BY TORQUE MAGNETOMETRY -r(b) Renk(b), Steenbeck(a) W. Andr~.(a), J. Betz(b), B. Brunner(b), R. Hergt(a), H. Lengfellnu , K.F. K. Physikalisch-Technisches Institut Jena, Helmholtzweg 4, 0-6900 Jena, Germany (a) and Institut for Angewandte Physik der Universit~.t Regensburg, Universit~.tsstr. 31, W-8400 Regensburg, Germany (b)

YBaCuO films with c-or a-axis texture were prepared by laser deposition and sputtering. From rotational hysteresis losses critical current densities and pinning forces are calculated. The torque relaxation gives activation energies in the range of 0.21 to 0.37 eV. Characteristic differences ot critical current densities and activation energies are related to the film microstructure.