Coupling between Jump Motions and Correlated Motions
スポンサーリンク
概要
- 論文の詳細を見る
We have studied the α and β relaxations of the generalized susceptibility (imaginary part of χ) for a two dimensional model fluid which contains 10,000 atoms via molecular dynamics (MD) simulation. We have found that jump motions and correlated motions of atoms exist in supercooled liquid state and glass state, and these two motions contribute to α and β peak of χ", respectively. Highly correlated areas extend over hundreds of atoms in glass state. These motions are coupled strongly in glass state, and become stronger than in supercooled liquid state. This suggests that linearly correlated jump motions which change the neighborhood configuration occur in glass state, and this type of motion possibly becomes a main factor of the system relaxation.
- 理論物理学刊行会の論文
- 1997-06-27
著者
-
Muranaka T
Aichi Inst. Technol. Toyota Jpn
-
Muranaka Tadashi
General Education Aichi Institute Of Technology
-
Hiwatari Yasuaki
Department Of Computational Science Faculty Of Science Kanazawa University
-
MURANAKA Tadashi
General Education, Aichi Institute of Technology
関連論文
- A Unified Interpretation of Structures of Liquid Se and Te : Molecular Dynamics Study
- Tight-Binding Molecular Dynamics with the Fermi Operator Expansion : Application to Liquid Carbons
- A Multicanonical Molecular Dynamics Study on a Simple Bead-Spring Model for Protein Folding : Cross-Disciplinary Physics
- Monte Carlo Simulation of Thin Film Growth with Lattice Defects : Phase Separation in Ternary Mixtures
- Molecular Dynamics Simulation of Martensitic Transformations in NiAl Alloy Using the Modified Embedded Atom Method (Condensed Matter: Structure, Mechanical and Thermal Properties)
- Electronic Structures and Phase Transitions of Selenium under High Pressure with FLAPW Method
- The Electronic Structure of a High Pressure Monoclinic Selenium and the Structural Phase Transition
- High Pressure Phases and the Structural Phase Transition of Selenium
- A Molecular Dynamics Simulation of the Carbon Cluster Formation on a Parallel Computer
- Surface Structure and Void Formation in Thin Film Growth : A Monte Carlo Simulation
- Temperature Dependence of the Refractive Indices in the Nematic Phase of 4, 4´-Azoxyanisole
- Molecular Dynamics Studies of Superionic Conductors.Interionic Potential and Ion-Conducting Phase
- Molecular Dynamics Studies of the Low-Temperature Amorphous Soft-Core Systems
- Monte Carlo Study of the Soft-Core Model for α-AgI
- Spatial Heterogeneity in Supercooled Liquids and Glasses
- Molecular Dynamics Studies of Solid -Liquid Interface of Soft-Core Model
- Structural Properties of a Simple Polymer Chain in a Narrow Tube : Monte Carlo Simulation
- Superionic Conductivity and Interionic Potential
- Monte Carlo Simulations of Superionic CaF_2
- Dynamic Slowing-Down and Nonexponential Decay of the Density Correlation Function in Soft-Sphere Supercooled Liquids
- Self-Similarity in the Shape of the Regions of the Correlated Motions
- Molecular-Dynamics Study for the Glass Transition in LiI
- Coupling between Jump Motions and Correlated Motions