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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:
DateEvent
1 May 2000UNSPECIFIED
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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