INFORMATION STORAGE IN NANOSCOPIC MAGNETIC ARRAYS

A. Kaczanowski and K. Kułakowski ()
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A. Kaczanowski: Faculty of Physics and Nuclear Techniques, University of Mining and Metallurgy, al. Mickiewicza 30, PL-30059 Kraków, Poland
K. Kułakowski: Faculty of Physics and Nuclear Techniques, University of Mining and Metallurgy, al. Mickiewicza 30, PL-30059 Kraków, Poland

International Journal of Modern Physics C (IJMPC), 2003, vol. 14, issue 06, 797-804

Abstract: Magnetostatic interaction between elements of nanomagnetic arrays leads to flips of magnetic moments in the magnetic posts. Such flips are equivalent to errors of information stored in an array. We prove that antiferromagnetic-like modulation strongly reduces the probability of errors, with relatively small reduction in the density of the stored information. We also show that some magnetic configurations of the array generate errors more likely than the others. Elimination of these configurations leads to a substantial improvement of the storage quality.

Keywords: Ising model; magnetostatic interaction; coercive field; Gaussian distribution; 75.50.Ss; 75.75.+a; 85.70 Ay (search for similar items in EconPapers)
Date: 2003
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DOI: 10.1142/S0129183103004930

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