科研之友
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摘要
We have combined high-resolution magneto-optical imaging with an ultrafast heating and cooling technique to measure the movement of individual vortices in a superconducting film. The motion took place while the film was heated close to T-c, where pinning and viscous forces are relatively small. Under these conditions, vortices move due to the magnetic repulsion between them. We found that a finite vortex mass has to be included in the analysis in order to account for the experimental results. The extent of the motion is consistent with a vortex mass being three orders of magnitude smaller than the mass of all the electrons in the core.
- 出版日期2012-2-13
