A comparative analysis of the mechanisms of pinning of a domain wall in a nanowire |
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| Authors: | A A Ivanov V A Orlov |
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| Institution: | 1.Siberian Federal University,Krasnoyarsk,Russia;2.Astaf’ev Krasnoyarsk State Pedagogical University,Krasnoyarsk,Russia |
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| Abstract: | A comparative analysis of the influence of random fluctuations of the crystallographic anisotropy and surface roughnesses
on the pinning of a domain wall in a nanowire has been performed in the framework of the model of a polycrystalline nanowire.
The initial magnetization curve and the coercive force for these mechanisms of pinning have been calculated. A criterion has
been formulated according to which surface inhomogeneities of the nanowire play the key role in the process of pinning of
a domain wall. The analytical results obtained have been verified using computer simulation. |
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