DYNAMIQUE DES FLUCTUATIONS ET PHÉNOMÈNES DE TRANSPORT PRÈS DU POINT CRITIQUECRITICAL PHENOMENA IN ANISOTROPIC MAGNETIC SYSTEMSReport as inadecuate




DYNAMIQUE DES FLUCTUATIONS ET PHÉNOMÈNES DE TRANSPORT PRÈS DU POINT CRITIQUECRITICAL PHENOMENA IN ANISOTROPIC MAGNETIC SYSTEMS - Download this document for free, or read online. Document in PDF available to download.



Abstract : Introducing the anisotropy as a further critical variable a universal scaling law for the susceptibilities and relaxation rates in anisotropic magnetic systems exists. The critical state splits into regions of different critical behavior. In these regions power laws apply. The behavior in the cross over regions cannot be described by power laws. Using lowest order mode-mode approximation we calculated numerically critical spin relaxations. We find good agreement with recent experiments.





Author: F. Wegner

Source: https://hal.archives-ouvertes.fr/



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