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Магнітні фазові переходи першого роду в нанокластерних системах в рамках наближення Ландау

Authors: Yushchenko, Olha Volodymyrivna; Badalian, Anna Yuriivna;

Магнітні фазові переходи першого роду в нанокластерних системах в рамках наближення Ландау

Abstract

У роботі було представлено феноменологічну модель переходу між парамагнітним та магнітовпорядкованим станами нанокластерної системи за механізмом фазового переходу першого роду. При цьому окрім основних термодинамічних складових в залежності вільної енергії було враховано міжкластерну взаємодію та дію зовнішнього тиску. Знайдена температурна залежність стаціонарного значення відносної намагніченості та критичне значення тиску, за якого можливий перехід. The phenomenological model of the first-order phase transition between the paramagnetic and magneto-ordered states of the nanocluster system was presented in the paper. In addition to the main thermodynamic components, intercluster interaction and the effect of external pressure were included into the dependence of the free energy. The temperature dependence of the stationary value of relative magnetization and the critical value of pressure, at which a transition is possible, were found.

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Keywords

Вільна енергія, Параметр порядку, Landau approximation, Наближення Ландау, Намагніченість, Free energy, Magnetization, Order parameter

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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