33 research outputs found
Vortex microavalanches in superconducting Pb thin films
Full text linkLocal magnetization measurements on 100 nm type-II superconducting Pb thin
films show that flux penetration changes qualitatively with temperature. Small
flux jumps at the lowest temperatures gradually increase in size, then
disappear near T = 0.7Tc. Comparison with other experiments suggests that the
avalanches correspond to dendritic flux protrusions. Reproducibility of the
first flux jumps in a decreasing magnetic field indicates a role for defect
structure in determining avalanches. We also find a temperature-independent
final magnetization after flux jumps, analogous to the angle of repose of a
sandpile.Comment: 6 pages, 5 figure
Comparison of different media for the isolation and enumeration of Aeromonas spp. in foods
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Significance of active fructose transport in the differentiation of the Saccharomyces sensu stricto group
No full textAccounting education, training and the profession in the Commonwealth Caribbean: Integration or internationalisation?
No full textIncreased protection afforded by the defined substrate technology Colilert system by its ability to detect Shigella β-glucuronidase
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