Propagation of solitons in hydrogen-bonded chains with mass variation

G. Kalosakas, A. V. Zolotaryuk, G. P. Tsironis, E. N. Economou

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

In the context of the soliton mechanism for proton transport in hydrogen-bonded networks we analyze properties of kink propagation through disordered hydrogen-bonded chain when realistic mass variation along the chain is created through deuterium substitutions. We provide an interpretation for the kink propagation in the chain as the motion of a particle with variable mass. We show that mass impurity localized modes are excited only above a certain threshold of kink velocity and, as a result, the presence of mass impurities renormalizes the maximal kink velocity in the medium. The existence of a critical kink velocity for the excitation of impurity mode appears also in the study of the interaction of kink with a single impurity.

Original languageEnglish
Pages (from-to)1088-1096
Number of pages9
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume56
Issue number1
DOIs
Publication statusPublished - Jan 1 1997

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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