RT Journal Article
T1 Directional vortex motion guided by artificially induced mesoscopic potentials
A1 Villegas, J. E.
A1 González Herrera, Elvira María
A1 Montero, , M. I.
A1 Schuller, Ivan K.
A1 Vicent López, José Luis
AB Rectangular pinning arrays of Ni dots define a potential landscape for vortex motion in Nb films. Magnetotransport experiments in which two in-plane orthogonal electrical currents are injected simultaneously allow one to select the direction and magnitude of the Lorentz force on the vortex lattice, thus providing the angular dependence of the vortex motion. The background dissipation depends on the angle at low magnetic fields, which is progressively smeared out with increasing field. The periodic potential locks in the vortex motion along channeling directions. Because of this, the vortex-lattice direction of motion is up to 85degrees away from the applied Lorentz force direction.
PB American Physical Society
SN 1098-0121
YR 2003
FD 2003-12
LK https://hdl.handle.net/20.500.14352/52086
UL https://hdl.handle.net/20.500.14352/52086
LA eng
NO ©2003 The American Physical Society.We acknowledge Grant No. MAT02-04543 from Spanish CICYT, Fundación Ramón Areces and New Del Amo Program. Work at UCSD was supported by the U.S. DOE.ESF Vortex program. One of us (E.M.G.) thanks Spanish Ministerio Ciencia Tecnologia for a Ramon y Cajal contract. We thank Professor J. Santamaría for useful conversations and a critical reading of the paper, and thank A. Silhanek and J. Schuller for helpful conversations.
NO Spanish CICYT
NO Fundación Ramón Areces
NO New Del Amo Program
DS Docta Complutense
RD 4 abr 2025