| Numéro |
J. Phys. IV France
Volume 09, Numéro PR10, December 1999
International Workshop on Electronic CrystalsECRYS-99 |
|
|---|---|---|
| Page(s) | Pr10-5 - Pr10-9 | |
| DOI | https://doi.org/10.1051/jp4:19991002 | |
International Workshop
on Electronic Crystals
ECRYS-99
J. Phys. IV France 09 (1999) Pr10-5-Pr10-9
DOI: 10.1051/jp4:19991002
1 Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08855, U.S.A.
2 Department of Physics, University of California, Los Angeles, California 90024-1547, U.S.A.
3 NEC Research Institute, 4 Independence Way, Princeton, New Jersey 08540, U.S.A.
4 Department of Chemistry, Rutgers University, Piscataway, New Jersey 08855, U.S.A.
© EDP Sciences 1999
ECRYS-99
J. Phys. IV France 09 (1999) Pr10-5-Pr10-9
DOI: 10.1051/jp4:19991002
Current driven organization of magnetic vortices
E.Y. Andrei1, Z.L. Xiao1, W. Henderson1, 2, M.J. Higgins3, P. Shuk4 and M. Greenblatt41 Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08855, U.S.A.
2 Department of Physics, University of California, Los Angeles, California 90024-1547, U.S.A.
3 NEC Research Institute, 4 Independence Way, Princeton, New Jersey 08540, U.S.A.
4 Department of Chemistry, Rutgers University, Piscataway, New Jersey 08855, U.S.A.
Abstract
We report on a novel form of organization of magnetic vortices in a superconductor driven by a current. By
following the vortex motion with fast transport measurements we show that the current enables the system to escape out of
metastable states and explore its energy landscape. At low fields and temperatures the system relaxes into an ordered vortex
lattice while just below Ha it is in a disordered state. In the intermediate region the vortex state can be controlled by an
extemal driving current. In this regime the critical current can be either increased or decreased with an appropriate driving
current.
© EDP Sciences 1999