Transverse commensurability effect for vortices on periodic pinning arrays
- Los Alamos National Laboratory
Using computer simulations, we demonstrate a type of commensurability that occurs for vortices moving longitudinally through periodic pinning arrays in the presence of an additional transverse driving force. As a function of vortex density, there is a series of broad maxima in the transverse critical depinning force that do not fall at the matching fields where the number of vortices equals an integer multiple of the number of pinning sites. The commensurability effects are associated with dynamical states in which evenly spaced structures consisting of one or more moving rows of vortices form between rows of pinning sites. Remarkably, the critical transverse depinning force can be more than an order of magnitude larger than the longitudinal depinning force.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 960570
- Report Number(s):
- LA-UR-08-05305; LA-UR-08-5305; TRN: US201006%%1214
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 78, Issue 18; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
Similar Records
Moving vortex phases, dynamical symmetry breaking, and jamming for vortices in honeycomb pinning arrays
Surface Effects on the Dynamic Behavior of Vortices in Type II Superconducting Strips with Periodic and Conformal Pinning Arrays