Published March 1998
| Version v1
Journal article
Stringlike Cooperative Motion in a Supercooled Liquid
Creators
- 1. Center for Theoretical and Computational Materials Science, NIST, Gaithersburg, Maryland 20899 (United States)
- 2. Polymers Division, NIST, Gaithersburg, Maryland 20899 (United States)
- 3. Institut fuer Physik, Johannes Gutenberg Universitaet, Staudinger Weg 7, D-55099 Mainz (Germany)
- 4. Parallel Computational Sciences Department, Sandia National Laboratory, Albuquerque, New Mexico 87185-1111 (United States)
- 5. Department of Applied Mathematics, University of Western Ontario, London, Ontario N6A 5B7 (Canada)
Description
Extensive molecular dynamics simulations are performed on a glass-forming Lennard-Jones mixture to determine the nature of the cooperative motions occurring in this model fragile liquid. We observe stringlike cooperative molecular motion (open-quotes stringsclose quotes) at temperatures well above the glass transition. The mean length of the strings increases upon cooling, and the string length distribution is found to be nearly exponential. copyright 1998 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 80
- Journal Issue
- 11
- Journal Page Range
- p. 2338-2341.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 29036958
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BINARY MIXTURES; COLLECTIVE EXCITATIONS; COMPUTERIZED SIMULATION; LIQUIDS; MOLECULAR DYNAMICS METHOD; MOTION; RELAXATION; TEMPERATURE DEPENDENCE; VAN HOVE MODEL
- Descriptors DEC
- CALCULATION METHODS; DISPERSIONS; ENERGY-LEVEL TRANSITIONS; EXCITATION; FLUIDS; MATHEMATICAL MODELS; MIXTURES; PARTICLE MODELS; SIMULATION