Physics – Condensed Matter – Superconductivity
Scientific paper
2011-12-09
Supercond. Sci. Technol. 25 (2012) 035005
Physics
Condensed Matter
Superconductivity
submitted to: Superconductor Science and Technology, 17 pages, 5 figures
Scientific paper
10.1088/0953-2048/25/3/035005
We studied the critical state stability in a large cubic sample of a single crystalline La(1.85)Sr(0.15)CuO(4) for different sample orientations with respect to the external magnetic field as well as the dynamics of the flux jumps. It is shown that thermomagnetic avalanches develop in dynamic conditions characterized by significantly lower magnetic diffusivity than the thermal one. In this case, critical state stability depends strongly on cooling conditions. We compared predictions of the isothermal model and of the model for the weakly cooled sample with experimental results. In both models, the field of the first flux jump decreases with an increase of sweep rate of the external magnetic field. We also investigated the influence of external magnetic field on the dynamics of the following stages of the thermomagnetic avalanche. It is shown that the dynamics of the flux jumps is correlated with the magnetic diffusivity proportional to the flux flow resistivity.
Chabanenko V. V.
Nabialek A.
Perez-Rodriguez F.
Tsvetkov T. V.
Vasiliev S. V.
No associations
LandOfFree
Influence of crystal anisotropy on the critical state stability and flux jumps dynamics in a single crystal of La(1.85)Sr(0.15)CuO(4) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Influence of crystal anisotropy on the critical state stability and flux jumps dynamics in a single crystal of La(1.85)Sr(0.15)CuO(4), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Influence of crystal anisotropy on the critical state stability and flux jumps dynamics in a single crystal of La(1.85)Sr(0.15)CuO(4) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-44041