Critical state of anisotropic hard superconductors

Autor: Felipe Pérez-Rodríguez, C. Romero-Salazar
Rok vydání: 2003
Předmět:
Zdroj: Superconductor Science and Technology. 16:1273-1281
ISSN: 1361-6668
0953-2048
DOI: 10.1088/0953-2048/16/11/004
Popis: The magnetic response of anisotropic irreversible type-II superconductors is investigated theoretically. Using an elliptic vertical law for the electric field E as a function of the current density J, we have reproduced available experimental magnetization curves of YBCO samples with the c axis lying in the sample plane. Specifically, we could reproduce quantitatively and interpret correctly the appearance of additional extrema and segments with relatively small slopes of the virgin magnetization curves when the direction of the applied magnetic field differs from the principal axes. The notable deformation of magnetization curves in a tilted magnetic field is connected to the strong coupling between the components of the magnetic induction.
Databáze: OpenAIRE