Defect Sensitivity of Magnetic Dot Arrays Influenced by Thermal Activation and Intradot Anisotropy
P. Baláž, D. Horváth and M. Gmitra
Department of Theoretical Physics and Astrophysics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 01 Košice, Slovak Republic
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Received: 9 07 2007;
The influence of non-magnetic central node defect on magnetic hysteresis of regular square-shaped segment of magnetic dot array with perpendicular uniaxial anisotropy under the thermal activation was investigated via computer simulations based on stochastic Landau-Lifshitz-Gilbert equation. The aim of this study is to point out the simultaneous effect of anisotropy and thermal activation to the dynamical properties of magnetic dot arrays.
DOI: 10.12693/APhysPolA.113.583
PACS numbers: 61.80.Az, 74.25.Fy, 74.72.Bk, 02.70.Bf