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Direct observation of rectified motion of vortices by Lorentz microscopy
- Source :
- Pramana; January 2006, Vol. 66 Issue: 1 p279-287, 9p
- Publication Year :
- 2006
-
Abstract
- We have investigated the vortex dynamics for the ‘ratchet’ operation in a niobium superconductor via a direct imaging of Lorentz microscopy. We directly observe one-directional selective motion of field-gradient-driven vortices along fabricated channels. This results from the rectification of vortices in a spatially asymmetric potential under the oscillating magnetic field in a temporally symmetric manner. Based on the observation of the individual motion of vortices, we clarify the elementary process involved in this rectification.
Details
- Language :
- English
- ISSN :
- 03044289
- Volume :
- 66
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Pramana
- Publication Type :
- Periodical
- Accession number :
- ejs12634265
- Full Text :
- https://doi.org/10.1007/BF02704956