Article ID Journal Published Year Pages File Type
9834174 Journal of Magnetism and Magnetic Materials 2005 4 Pages PDF
Abstract
To study the effect of Y2BaCuO5 (211 phase) precipitates on the flux jumps which appear at very low temperatures in YBa2Cu3O7-δ single crystal magnetization curves, three crystals have been used, of which two contain the 211 phase, in different proportions; the third reference sample being devoid of these precipitates. Our results show for the first time that the regularity of flux jumps is intimately connected with flux pinning mechanisms. For a field H applied perpendicular to the c-axis, lowering the temperature down to 1.5 K, we have not observed any jump, indicating that these precipitates constitute a factor of stabilization for this system.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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