Structural ordering and glass forming of soft spherical particles with harmonic repulsions

被引：10

作者：

Sun, Bin ^{[1
]}

Sun, Zhiwei ^{[2
]}

Ouyang, Wenze ^{[2
]}

Xu, Shenghua ^{[2
]}

机构：

[1] Zhongyuan Univ Technol, Sch Mat & Chem Engn, Zhengzhou 450007, Peoples R China

[2] Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China

来源：

JOURNAL OF CHEMICAL PHYSICS | 2014年 / 140卷 / 13期

基金：

中国国家自然科学基金;

关键词：

MODE-COUPLING THEORY; GAUSSIAN CORE MODEL; CRYSTAL NUCLEATION; DYNAMICS; TRANSITIONS; SPHERES; SIMULATION; MECHANICS; COLLOIDS; PHASES;

D O I：

10.1063/1.4869833

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We carry out dissipative particle dynamics simulations to investigate the dynamic process of phase transformation in the system with harmonic repulsion particles. Just below the melting point, the system undergoes liquid state, face-centered cubic crystallization, body-centered cubic crystallization, and reentrant melting phase transition upon compression, which is in good agreement with the phase diagram constructed previously via thermodynamic integration. However, when the temperature is decreased sufficiently, the system is trapped into an amorphous and frustrated glass state in the region of intermediate density, where the solid phase and crystal structure should be thermodynamically most stable. (C) 2014 AIP Publishing LLC.

引用

页数：7

共 43 条

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