TY - JOUR
T1 - Induced dipoles and dielectrophoresis of nanocolloids in electrolytes
AU - Basuray, Sagnik
AU - Chang, Hsueh Chia
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2007/6/25
Y1 - 2007/6/25
N2 - Electric induced dipoles of nanocolloids the size of the Debye length are shown to be one order stronger than predicted by the classical Maxwell-Wagner theory and its extensions. The difference is attributed to normal ion migration within the diffuse layer, and adsorption onto the Stern layer at the poles. The characteristic relaxation frequency (the crossover frequency for dielectrophoresis) is shown to be inversely proportional to the RC time of the diffuse layer capacitance and resistance, and has an anomalous -1 scaling with respect to the product of the Debye length and the particle size.
AB - Electric induced dipoles of nanocolloids the size of the Debye length are shown to be one order stronger than predicted by the classical Maxwell-Wagner theory and its extensions. The difference is attributed to normal ion migration within the diffuse layer, and adsorption onto the Stern layer at the poles. The characteristic relaxation frequency (the crossover frequency for dielectrophoresis) is shown to be inversely proportional to the RC time of the diffuse layer capacitance and resistance, and has an anomalous -1 scaling with respect to the product of the Debye length and the particle size.
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U2 - 10.1103/PhysRevE.75.060501
DO - 10.1103/PhysRevE.75.060501
M3 - Article
AN - SCOPUS:34547363777
SN - 1063-651X
VL - 75
JO - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
JF - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
IS - 6
M1 - 060501
ER -