Multiple magnetization peaks in weakly pinned Ca3Rh4Sn13 and YBa2Cu3O7-δ
Abstract
The second magnetization peak and the peak effect anomaly coexisting in a given isothermal magnetization hysteresis loop show striking similarities in Ca3Rh4Sn13, a low-Tc superconductor and YBa2Cu3O7-δ, a high-Tc superconductor. The observed variation of the hysteresis width with field could imply a modulation in the degree of the plastic deformation of the elastic vortex solid. The characteristics of the high-Tc cuprates, such as large Ginzburg number, short coherence length, decoupling of the Josephson coupled pancake vortices, etc., are unlikely to be the cause of the observed behavior.
- Publication:
-
Physical Review B
- Pub Date:
- October 2001
- DOI:
- 10.1103/PhysRevB.64.144510
- Bibcode:
- 2001PhRvB..64n4510S
- Keywords:
-
- 74.60.Ge;
- 64.70.Dv;
- 74.25.Dw;
- Solid-liquid transitions;
- Superconductivity phase diagrams