Počet záznamů: 1

A non-linear dissipative model of magnetism

  1. 1.
    0342478 - UFCH-W 2011 RIV GB eng J - Článek v odborném periodiku
    Durand, P. - Paidarová, Ivana
    A non-linear dissipative model of magnetism.
    EPL. Roč. 89, č. 6 (2010), s. 67004 ISSN 1286-4854
    Grant CEP: GA AV ČR IAA100400501
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: non-linear dissipative model of magnetism * thermodynamics * physical chemistry
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie

    A new non-linear dissipative model of magnetism based on the laws of statistical physics is presented. The linear response theory is extended to pass from a quasi-static dynamics to the actual dynamics. The non-equilibrium dissipative dynamics explicitly takes into account the relaxation phenomena as well as the jumps over the energy barriers. The approach provides kinetic equations analogous to the phenomenological laws of transport appearing in the extended thermodynamics. The model holds from molecular magnets possessing plateaus to bulk magnetic materials. An energetic and entropic analysis along the lines initiated by Jaynes and Prigogine provides a deeper understanding of the non-equilibrium thermodynamics.
    Trvalý link: http://hdl.handle.net/11104/0185205