By numerically solving the nonlinear magnetic flux diffusion equation, the temperature dependence of the ac magnetic susceptibility have been computed at different frequencies in the framework of the collective pinning vortex glass and of the Kim-Anderson models. In particular the frequency dependence of the amplitude of the third harmonic have been analyzed. Such dependence is determined by the dynamic curvature of the E-J characteristics, normalized to the dynamic resistivity.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
Gioacchino, D. D., Tripodi, P., Celani, F., Testa, A. M., & Pace, S. (2001). Frequency dependence of HTS ac harmonic susceptibility in the Kim-Anderson and collective pinning vortex glass models. IEEE Transactions on Applied Superconductivity, 11(1 III), 3924 - 3927. https://doi.org/10.1109/77.919931