Magnetization reversal and vortex chirality correlation in ferromagnetic dot arrays (Contributo in volume (capitolo o saggio))

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Label
  • Magnetization reversal and vortex chirality correlation in ferromagnetic dot arrays (Contributo in volume (capitolo o saggio)) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Natali M.; Y.Chen (2008)
    Magnetization reversal and vortex chirality correlation in ferromagnetic dot arrays
    Transworld Research Network, Trivandrum (India) in Electromagnetic, Magnetostatic, and Excange-Interaction Vortices in Confined Magnetic Structures, 2008
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  • Natali M.; Y.Chen (literal)
Pagina inizio
  • 195 (literal)
Pagina fine
  • 221 (literal)
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  • Kerala (literal)
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  • http://ressign.com/UserBookDetail.aspx?bkid=830&catid=188 (literal)
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  • Electromagnetic, Magnetostatic, and Excange-Interaction Vortices in Confined Magnetic Structures (literal)
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  • ISBN: 978-81-7895-373-1 (literal)
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  • 1. Istituto di Chimica Inorganica e delle Superfici ICIS-CNR, Padova; 2. Laboratoire de Photonique et Nanostructures (LPN), CNRS, and Ecole Normale, Supérieure, Paris (literal)
Titolo
  • Magnetization reversal and vortex chirality correlation in ferromagnetic dot arrays (literal)
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  • Electromagnetic, Magnetostatic, and Exchange-Interaction Vortices in Confined Magnetic Structures (literal)
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  • 978-81-7895-373-1 (literal)
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  • E.O. Kamenetskii (literal)
Abstract
  • An overview of our research on vortex states in arrays of cobalt and permalloy dots is presented. At first a description of single-domain and vortex states is given together with a discussion of the dependence of magnetization reversal process on dot size and thickness. We then focus our attention on the vortex nucleation/annihilation process in arrays of closely spaced, interacting dots. Several phenomena are describet, including 1) a fourfold anisoptropy in a square array of circular Co dots, 2) formation of chains of vortices with identical chirality in a square array of Co dots, 3) formation of vortices with alternating chiralities in two-dot chains and in zig-zag chains as well as in a honeycomb array of permalloy dots. We show that a detailed investigation of the internal micromagnetic configurations of the dots by MFM imaging and micromagnetic simulations is necessary to understand these phenomena. (literal)
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