Low-frequency critical dynamics in (CnH2n+1NH3)2SnCl6 model biomembrane systems

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Abstract

Nuclear magnetic resonance has been employed as a probe for the collective hydrocarbon chain dynamics in the organic-inorganic model biomembranes (CnH2n+1NH3)2SnCl6, undergoing order-disorder and conformational phase transitions. No anomalies were observed in the laboratory-frame spin-lattice relaxation measurements at the order-disorder phase transitions, whereas a discontinuity was manifest at the conformational phase transitions characteristic of a first-order phase transition. On the other hand, our rotating frame spin-lattice relaxation measurements revealed a low-frequency critical collective chain dynamics in the kilohertz regime associated with the order-disorder phase transition.

Original languageEnglish
Pages (from-to)31-33
Number of pages3
JournalCurrent Applied Physics
Volume7
Issue number1
DOIs
Publication statusPublished - 2007 Jan 1

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Keywords

  • Critical dynamics model biomembranes
  • Nuclear magnetic resonance
  • Phase transition

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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