Density of States of Colloidal Glasses

被引：112

作者：

Ghosh, Antina ^{[1
]}

Chikkadi, Vijayakumar K. ^{[1
]}

Schall, Peter ^{[1
]}

Kurchan, Jorge ^{[2
]}

Bonn, Daniel ^{[1
,3
]}

机构：

[1] Univ Amsterdam, Van der Waals Zeeman Inst, NL-1018 XE Amsterdam, Netherlands

[2] ESPCI, PMMH, CNRS UMR 7636, F-75005 Paris, France

[3] CNRS, ENS, LPS, UMR 8550, F-75005 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 24期

关键词：

AMORPHOUS SOLIDS; MODES; SUSPENSIONS; DYNAMICS; CRYSTAL;

D O I：

10.1103/PhysRevLett.104.248305

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Glasses are structurally liquidlike, but mechanically solidlike. Most attempts to understand glasses start from liquid state theory. Here we take the opposite point of view, and use concepts from solid state physics. We determine the vibrational modes of a colloidal glass experimentally, and find soft low-frequency modes that are very different in nature from the usual acoustic vibrations of ordinary solids. These modes extend over surprisingly large length scales.

引用

页数：4

共 25 条

[1] CROSS-CORRELATION INTENSITY FLUCTUATION SPECTROSCOPY APPLIED TO COLLOIDAL SUSPENSIONS [J].

ACKERSON, BJ ;

CLARK, NA .

FARADAY DISCUSSIONS, 1983, 76 :219-228

[2] Amorphous solids: Their structure, lattice dynamics and elasticity [J].

Alexander, S .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1998, 296 (2-4) :65-236

[3]

BRITO C, ARXIV:0804.2439

[4] Heterogeneous dynamics, marginal stability and soft modes in hard sphere glasses [J].

Brito, Carolina ;

Wyart, Matthieu .

JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, 2007,

[5] Phonons in an entropic crystal [J].

Cheng, ZD ;

Zhu, JX ;

Russel, WB ;

Chaikin, PM .

PHYSICAL REVIEW LETTERS, 2000, 85 (07) :1460-1463

[6] Strain versus stress in a model granular material: A devil's staircase [J].

Combe, G ;

Roux, JN .

PHYSICAL REVIEW LETTERS, 2000, 85 (17) :3628-3631

[7] Phonon interpretation of the 'boson peak' in supercooled liquids [J].

Grigera, TS ;

Martín-Mayor, V ;

Parisi, G ;

Verrocchio, P .

NATURE, 2003, 422 (6929) :289-292

[8] Vibrations in glasses and Euclidean random matrix theory [J].

Grigera, TS ;

Martín-Mayor, V ;

Parisi, G ;

Verrocchio, P .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (09) :2167-2179

[9]

Hansen J.P., 1991, Liquids, Freezing and Glass Transition

[10] A simple physical description of DNA dynamics: quasi-harmonic analysis as a route to the configurational entropy [J].

Harris, S. A. ;

Laughton, C. A. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (07)

← 1 2 3 →