Measurement of the Four-Point Susceptibility of an Out-of-Equilibrium Colloidal Solution of Nanoparticles Using Time-Resolved Light Scattering

Claudio Maggi, Ricardo Di Leonardo, giancarlo ruocco, J. C. Dyre

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

The spatial fluctuations of the dynamics of a colloidal system composed of nanoparticles are probed by a novel experimental setup, which combines homodyne and heterodyne dynamic light scattering focused onto a micron-sized volume via a microscope objective. The technique is used to measure the four-point susceptibility of an aging colloidal suspension, revealing a breakdown of the Gaussian approximation for the correlation function of the scattered electromagnetic field. The deviation from the Gaussian approximation increases with waiting time as the system evolves toward an arrested phase, signaling the gradual emergence of higher-order nontrivial dynamic correlations.
OriginalsprogEngelsk
TidsskriftPhysical Review Letters
Vol/bind109
Udgave nummer9
Sider (fra-til)094701-1 til 094701-4
Antal sider4
ISSN0031-9007
DOI
StatusUdgivet - 2012

Citer dette

@article{5ee5de2856224f44abeb9288e59b2534,
title = "Measurement of the Four-Point Susceptibility of an Out-of-Equilibrium Colloidal Solution of Nanoparticles Using Time-Resolved Light Scattering",
abstract = "The spatial fluctuations of the dynamics of a colloidal system composed of nanoparticles are probed by a novel experimental setup, which combines homodyne and heterodyne dynamic light scattering focused onto a micron-sized volume via a microscope objective. The technique is used to measure the four-point susceptibility of an aging colloidal suspension, revealing a breakdown of the Gaussian approximation for the correlation function of the scattered electromagnetic field. The deviation from the Gaussian approximation increases with waiting time as the system evolves toward an arrested phase, signaling the gradual emergence of higher-order nontrivial dynamic correlations.",
author = "Claudio Maggi and {Di Leonardo}, Ricardo and giancarlo ruocco and Dyre, {J. C.}",
year = "2012",
doi = "10.1103/PhysRevLett.109.097401",
language = "English",
volume = "109",
pages = "094701--1 til 094701--4",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "9",

}

Measurement of the Four-Point Susceptibility of an Out-of-Equilibrium Colloidal Solution of Nanoparticles Using Time-Resolved Light Scattering. / Maggi, Claudio; Di Leonardo, Ricardo; ruocco, giancarlo; Dyre, J. C.

I: Physical Review Letters, Bind 109, Nr. 9, 2012, s. 094701-1 til 094701-4.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Measurement of the Four-Point Susceptibility of an Out-of-Equilibrium Colloidal Solution of Nanoparticles Using Time-Resolved Light Scattering

AU - Maggi, Claudio

AU - Di Leonardo, Ricardo

AU - ruocco, giancarlo

AU - Dyre, J. C.

PY - 2012

Y1 - 2012

N2 - The spatial fluctuations of the dynamics of a colloidal system composed of nanoparticles are probed by a novel experimental setup, which combines homodyne and heterodyne dynamic light scattering focused onto a micron-sized volume via a microscope objective. The technique is used to measure the four-point susceptibility of an aging colloidal suspension, revealing a breakdown of the Gaussian approximation for the correlation function of the scattered electromagnetic field. The deviation from the Gaussian approximation increases with waiting time as the system evolves toward an arrested phase, signaling the gradual emergence of higher-order nontrivial dynamic correlations.

AB - The spatial fluctuations of the dynamics of a colloidal system composed of nanoparticles are probed by a novel experimental setup, which combines homodyne and heterodyne dynamic light scattering focused onto a micron-sized volume via a microscope objective. The technique is used to measure the four-point susceptibility of an aging colloidal suspension, revealing a breakdown of the Gaussian approximation for the correlation function of the scattered electromagnetic field. The deviation from the Gaussian approximation increases with waiting time as the system evolves toward an arrested phase, signaling the gradual emergence of higher-order nontrivial dynamic correlations.

U2 - 10.1103/PhysRevLett.109.097401

DO - 10.1103/PhysRevLett.109.097401

M3 - Journal article

VL - 109

SP - 094701-1 til 094701-4

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 9

ER -