VORTEX DYNAMICS AND CRITICAL CURRENTS IN YBACUO SINGLE CRYSTAL WITH UNIDIRECTIONAL TWINS IN TILTED MAGNETIC FIELDS

نوع المستند : المقالة الأصلية

المؤلف

Department of Physics, Faculty of Education, Tanta University

المستخلص

We have measured resistive transitions and current-voltage characteristics for two samples having unidirectional twins oriented parallel and perpendicular with respect to transport current vector in tilted relatively to the c-axis magnetic fields. We observed glass-like behavior of the resistance at small transport currents for current vector oriented perpendicular to twin planes. The observed features of resistive behavior of both samples may be explained by special vortex dynamics in tilted fields.