Chaudhary, Sujeet ; Roy, S. B. ; Chaddah, P. (1999) Orientation induced crossover in pinning force density and peak effect in Bi2Sr2CaCu2O8+x single crystals Physica C: Superconductivity, 311 (1-2). pp. 122-132. ISSN 0921-4534
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0921-4534(98)00619-4
Abstract
Magnetization-hysteresis measurements on single crystal of Bi2Sr2CaCu2O8+x (Bi-2212) at various temperatures (20-40 K) are reported for different applied field orientations (θ) relative to the unit cell's c-axes. An orientation-induced crossover in the magnitude of the volume pinning force density Fp around θ≥20° is observed which does not conform with predictions of the existing 2D-pancake model. The results further indicate that the 'peak-effect' in Bi-2212 is associated with the crossover in the vortex matter from a quasi-lattice to a disordered vortex solid.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Superconductors; Bi-2212 Single Crystal; Pinning Force Density |
| ID Code: | 84613 |
| Deposited On: | 27 Feb 2012 13:05 |
| Last Modified: | 27 Feb 2012 13:05 |
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