1. Disorder induced power-law response of a superconducting vortex on a plane
- Author
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Shapira, N., Lamhot, Y., Shpielberg, O., Kafri, Y., Ramshaw, B. J., Bonn, D. A., Liang, Ruixing, Hardy, W. N., and Auslaender, O. M.
- Subjects
Condensed Matter - Superconductivity ,Condensed Matter - Disordered Systems and Neural Networks ,Condensed Matter - Mesoscale and Nanoscale Physics ,Condensed Matter - Soft Condensed Matter ,Condensed Matter - Statistical Mechanics - Abstract
We report drive-response experiments on individual superconducting vortices on a plane, a realization for a 1+1-dimensional directed polymer in random media. For this we use magnetic force microscopy (MFM) to image and manipulate individual vortices trapped on a twin boundary in YBCO near optimal doping. We find that when we drag a vortex with the magnetic tip it moves in a series of jumps. As theory suggests the jump-size distribution does not depend on the applied force and is consistent with power-law behavior. The measured power is much larger than widely accepted theoretical calculations., Comment: 4 pages, 4 figures, Supplemental Material file included
- Published
- 2014
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