Field- and temperature-dependent magnetic hysteresis in GdBa2Cu3O7-d ceramics

• Published in: Physica. C, Superconductivity Vol. 388-389; pp. 419 - 420
• Main Authors: Nishida, A, Teshima, Sh, Taka, Ch, Shigeta, I
• Format: Journal Article
• Language: English
• Published: 01.05.2003

Magnetic hysteresis measurements are performed in GdBa2Cu3O7-*D ceramics, and effects of magnetic field, temperature and substitution are studied. The hysteresis *DM is found to decay exponentially with temperature: *DM #r exp[-T/T0]. The activation temperature 70 varies mildly around 20 K, which se...