Creep motion of a magnetic wall: Avalanche size divergence
作者： V Repain , M Bauer , J.-P Jamet , J Ferré , A Mougin
DOI: 10.1209/EPL/I2004-10213-7
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摘要: The motion of a magnetic domain wall in He-ion-irradiated Pt/Co(0.5 nm)/Pt ultrathin film was studied low applied fields. field dependence the velocity displays creep behaviour, consistently with critical slowing-down when tends to zero. We also show that is induced by large spin reversal avalanches andthat energy barrier increase d irectly linkedto avalanche size. This observation excellent agreement theory elastic manifolds moving weakly disordered medium.
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M. Bauer, A. Mougin, J. P. Jamet, V. Repain, J. Ferré, R. L. Stamps, H. Bernas, C. Chappert, Deroughening of domain wall pairs by dipolar repulsion. Physical Review Letters. ,vol. 94, pp. 207211- ,(2005) , 10.1103/PHYSREVLETT.94.207211