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The “Frozen In” Fluctuations in Systems with Non‐Conserved Order Parameter
Author(s) -
MchedlovPetrossyan P.O.,
Abysov A.S.,
Davydov L.N.,
Schmelzer J.
Publication year - 1998
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/(sici)1521-3951(199811)210:1<3::aid-pssb3>3.0.co;2-u
Subject(s) - phase diagram , statistical physics , thermal fluctuations , physics , limit (mathematics) , order (exchange) , structure factor , phase (matter) , diagram , mathematics , thermodynamics , condensed matter physics , quantum mechanics , mathematical analysis , statistics , finance , economics
An early time kinetics of a system with non‐conserved order parameter quenched into unstable two‐phase region of the phase diagram is considered. The process of phase separation under the influence of random inhomogeneities of the phenomenological coefficient in the Ginzburg‐Landau‐type equation of motion is studied. The combined effect of this “frozen‐in” (time‐independent) fluctuations and persistent thermal fluctuations on the structure factor is discussed. The classical Lifshits‐Allen‐Cahn law is reproduced, however, in the limit of applicability (in time) of the present analysis.