Low-frequency critical dynamics in (CnH2n+1NH3)2SnCl6 model biomembrane systems
Low-frequency critical dynamics in (CnH2n+1NH3)2SnCl6 model biomembrane systems
- 주제(키워드) Phase transition , Critical dynamics model biomembranes , Nuclear magnetic resonance
- 발행기관 한국물리학회
- 발행년도 2007
- 총서유형 Journal
- UCI G704-001115.2007.7.1.011
- KCI ID ART001041371
- 본문언어 영어
초록/요약
Nuclear magnetic resonance has been employed as a probe for the collective hydrocarbon chain dynamics in the organicinorganicmodel biomembranes (CnH 2n+1NH 3)2SnCl6, undergoing orderdisorder and conformational phase transitions. No anomalies wereobserved in the laboratory-frame spinlattice relaxation measurements at the orderdisorder phase transitions, whereas a discontinuitywas manifest at the conformational phase transitions characteristic of a rst-order phase transition. On the other hand, our rotatingframe spinlattice relaxation measurements revealed a low-frequency critical collective chain dynamics in the kilohertz regime associatedwith the orderdisorder phase transition.
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