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Title: Controllable stepmotors and rectifiers of magnetic flux quanta
Authors: Zhu, BY ×
Marchesoni, F
Moshchalkov, Victor
Nori, F #
Issue Date: 2004
Publisher: ELSEVIER SCIENCE BV
Series Title: Physica. C, Superconductivity vol:404 issue:1-4 pages:260-265
Conference: date:RIKEN, Inst Phys & Chem Res, Digital Mat Lab, 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 Heverlee, Belgium; Univ Michigan, Dept Phys, Ctr Theoret Phys, Ann Arbor, MI 48109 USA
Abstract: We study the transport of vortices in superconductors with square arrays of asymmetric pinning wells when applying an alternating electrical current. 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 system exhibits a remarkable net DC response with striking sawtooth-type oscillations, which we have studied as a function of several parameters (e.g., field H, Amplitude of drive). We analytically derive the main numerical features obtained here. (C) 2004 Elsevier 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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