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Low-frequency critical dynamics in (CnH2n+1NH3)(2)SnCl6 model biomembrane systems
- Authors
- Lee, Kyu Won; Lee, Cheol Eui; Choi, J. Y.; Kim, Joon
- Issue Date
- 1월-2007
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- phase transition; critical dynamics model biomembranes; nuclear magnetic resonance
- Citation
- CURRENT APPLIED PHYSICS, v.7, no.1, pp.31 - 33
- Indexed
- SCIE
SCOPUS
KCI
OTHER
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 7
- Number
- 1
- Start Page
- 31
- End Page
- 33
- ISSN
- 1567-1739
- Abstract
- Nuclear magnetic resonance has been employed as a probe for the collective hydrocarbon chain dynamics in the organic inorganic model biomembranes (CnH2n+1NH3)(2)SnCl6, 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. (c) 2005 Elsevier B.V. All rights reserved.
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