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Stepwise amorphization of the flux-line lattice in Ca3Rh4Sn13: A peak-effect study
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UNSPECIFIED (2000) Stepwise amorphization of the flux-line lattice in Ca3Rh4Sn13: A peak-effect study. PHYSICAL REVIEW B, 61 (18). pp. 12394-12403. ISSN 1098-0121.
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Abstract
The peak effect (PE) region in a single crystal of Ca3Rh4Sn13 is shown to comprise two discontinuous first-order-like transitions located near its onset and peak positions, in accordance with a stepwise fracturing of the flux-line lattice. Magnetization response to thermal cycling across the onset position produces an open hysteresis loop, consistent with the notion of the fracturing. A thermomagnetic history dependence study shows that the critical current density J(c)(H,T) is path dependent over a large part of the (H,T) parameter space. Tills path dependence ceases above the peak position of the peak effect, suggesting a complete amorphization of the flux-line lattice at (T-p,H-p) line. A plausible vortex phase diagram has been constructed for Ca3Rh4Sn13 in which phases like an elastic solid, a plastic solid, and pinned and unpinned amorphous states have been identified.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Journal or Publication Title: | PHYSICAL REVIEW B | ||||
| Publisher: | AMERICAN PHYSICAL SOC | ||||
| ISSN: | 1098-0121 | ||||
| Official Date: | 1 May 2000 | ||||
| Dates: |
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| Volume: | 61 | ||||
| Number: | 18 | ||||
| Number of Pages: | 10 | ||||
| Page Range: | pp. 12394-12403 | ||||
| Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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