Phys. Rev. B 69, 064417 (2004) [5 pages]Temperature dependence of the fluctuation of the switching field in small magnetic structuresReceived 24 October 2003; published 19 February 2004 We study the temperature dependence of the fluctuation of the switching field of small magnetic structures. For samples of different thicknesses, the fluctuations exhibit opposite temperature dependences. At the same time the switching field decreases linearly with temperature for both samples. Simulation shows that the mechanism of switching is different between the samples. We perform analytic calculations based on models suggested by the simulation and found temperature dependences in agreement with the experimental results. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.69.064417
DOI:
10.1103/PhysRevB.69.064417
PACS:
75.60.Ej, 75.60.Nt, 75.70.-i
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