Abstract
We present magnetization data on a weakly pinned single crystal of CeRu2, showing the existence of a stable state of the vortex matter in the peak effect (PE) region. The stable state is achieved by cycling the magnetic field by a small amplitude. It is characterized by a unique value of the critical current density, independent of the magnetic history of the sample. The results support a recent phenomenological model proposed by Ravikumar et al. [Phys. Rev. B 61 (2000) R6479] which postulates a specific recipe to incorporate the history dependence of the current density. Our data also shows the occurrence of a first order phase transition from an ordered vortex phase to a disordered phase across the PE.
| Original language | English |
|---|---|
| Pages (from-to) | 59-64 |
| Number of pages | 6 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 355 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - Jun 1 2001 |
| Externally published | Yes |
Keywords
- CeRu
- Peak effect
- Stable vortex state
- Step change in equilibrium magnetization
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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Tulapurkar, A. A., Heidarian, D., Sarkar, S., Ramakrishnan, S., Grover, A. K., Yamamoto, E., Haga, Y., Hedo, M., Inada, Y., & Onuki, Y. (2001). Elucidation of the stable vortex state across the peak effect region in CeRu2. Physica C: Superconductivity and its applications, 355(1-2), 59-64. https://doi.org/10.1016/S0921-4534(00)01772-X