Title: Easily-controllable collective stepmotor of magnetic flux quanta
Authors: Zhu, BY ×
Marchesoni, F
Moshchalkov, Victor
Nori, F #
Issue Date: 2003
Series Title: Physica. C, Superconductivity vol:388 pages:665-666
Conference: date:RIKEN, Inst Phys & Chem Res, Frontier Res Syst, Wako, Saitama 3510198, Japan; Univ Camerino, Ist Nazl Fis Mat, I-62032 Camerino, Italy; Katholieke Univ Leuven, Vaste Stof Fys Magnetisme Lab, B-3001 Louvain, Belgium; Univ Michigan, CSCS, Ctr Theoret Phys, Dept Phys, Ann Arbor, MI 48109 USA
Abstract: We study the transport of vortices in superconductors with regular arrays of asymmetric pinning wells when applying an alternating electrical current. We show that this system can induce a net rectifying or diode effect for the vortex motion, including collective stepmotor-type dynamics, where many vortices move forward a controlled and exact number of pin-lattice-spacings at each cycle of the AC driving force. This results in a remarkable net DC response with striking sawtooth-type oscillations. This system provides an experimentally realizable stepmotor of quanta and a precise control of the motion of vortices. (C) 2003 Elsevier Science B.V. All rights reserved.
ISSN: 0921-4534
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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