Roy, S. B. ; Chaddah, P. ; Chaudhary, Sujeet (1998) The anomalous mixed state of the C15 Laves phase superconductor CeRu2: a magnetization study Journal of Physics: Condensed Matter, 10 (22). pp. 4885-4900. ISSN 0953-8984
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Official URL: http://iopscience.iop.org/0953-8984/10/22/013
Related URL: http://dx.doi.org/10.1088/0953-8984/10/22/013
Abstract
We present a detailed magnetization study of the anomalous (H, T) regime of CeRu2. Using these results as well as a comparative study involving two other type-II superconductors (Bi-2212 and 1% Fe-Nb) showing peak effects, we first show that a picture of dynamic crossover of pinning properties is inadequate to explain the anomalous behaviour in CeRu2. We then argue that a first-order phase transition can explain the observed behaviour and we provide experimental evidence of such a transition in CeRu2 consistent with the Clausius-Clapeyron relation. The applicability of existing theoretical models and the role of magnetism in the anomalous (H, T) regime are discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 84615 |
| Deposited On: | 27 Feb 2012 12:33 |
| Last Modified: | 27 Feb 2012 12:33 |
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