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Type: Artigo de periódico
Title: Kinetics Of Ordering In The Order-disorder Phase Transition Of Alcl3-intercalated Graphite Studied Using Esr
Author: Stein R.M.
Walmsley L.
Rolla S.
Rettori C.
Abstract: Conduction-carrier spin-resonance experiments allowed us to study with some detail the kinetics of ordering in a quasi-two-dimensional order-disorder phase transition observed at Tc=170 K in stage-7 AlCl3-intercalated graphite. After quenching from the disordered phase (TTc) the time broadening of the linewidth reveals a scaling behavior (tn), which we attribute to the time growing of the average linear domain size of a weakly incommensurate superlattice. The best fit of the experimental data gives n=0.420.06 which corresponds to slow domain growth of highly degenerate Q-state Potts systems. Evidence for more sluggish kinetics is observed after an elapsed time of approximately 40 minutes, and at lower temperatures evidence of a glass like state is also observed. © 1986 The American Physical Society.
Citation: Physical Review B. , v. 33, n. 9, p. 6524 - 6526, 1986.
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.33.6524
Date Issue: 1986
Appears in Collections:Unicamp - Artigos e Outros Documentos

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