Low angle elastic light scattering study of diffusion limited aggregation

Ferri, Fabio; Giglio, M.; Perini, E. Paganini And U.

doi:10.1209/0295-5075/7/7/005

We have investigated the kinetics of the diffusion-limited aggregation of colloidal silica with low-angle elastic light scattering at 31 scattering angles covering the wave vector range 3.7 ƃ 102 cm-1 <q<3.3 ƃ 104 cm-1. We have studied both the asymptotic behaviour at larger q, which provides a measure of the clusters fractal dimension, as well as the roll-off region at small q, which gives information on the clusters size. Each set of data (scattered intensity vs. q vectors) has been analysed by means of a nonlinear iterative inversion scheme to provide the value of the number average gyration radius ⟨R⟩n which is found to grow in time with a power law tα. The exponent (average over a few runs) is α = 0.58 ± 0.02, consistent with the theoretical expectations. © 1988 IOP Publishing Ltd.

SFX

Autori:	FERRI, FABIO M. GIGLIO E. PAGANINI AND U. PERINI mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	1988
Titolo:	Low angle elastic light scattering study of diffusion limited aggregation
Rivista:	EUROPHYSICS LETTERS
Digital Object Identifier (DOI):	10.1209/0295-5075/7/7/005
Codice identificativo ISI:	WOS:A1988R231600005
Codice identificativo Scopus:	2-s2.0-84956129340
Appare nelle tipologie:	Articolo su Rivista

File in questo prodotto:

Non ci sono file associati a questo prodotto.

Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/11383/15109

Citazioni

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.