Article ID Journal Published Year Pages File Type
1819747 Physica C: Superconductivity and its Applications 2011 4 Pages PDF
Abstract
We study numerically the dynamics relating to negative vortex motion in inhomogeneous pinning systems. We show that this dynamical phenomenon results from the internal field effect produced by the growing local barriers with decreasing temperature. We find that the negative motion is characterized by a peak of negative voltage or resistance in resistance-temperature transport measurements. We also demonstrate that the time window to observe the negative motion is determined by the magnitude of driving force in addition to the temperature scanning rate.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
Authors
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