Electric dipole moments of particle aggregates in magnetite colloidal solutions in liquid dielectrics |
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Authors: | K V Erin |
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Institution: | 1. Stavropol State University, ul. Pushkina 1, Stavropol, 355009, Russia
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Abstract: | The permanent electric moments and the electric polarizability anisotropy of particle aggregates are determined from the results of measuring the birefringence of a magnetite colloidal solution in kerosene subjected to constant and pulsed electric fields. A possible mechanism of generating an induced dipole moment in the aggregates is analyzed. The moment is characterized by a long relaxation time and, according to the results of optical experiments, is interpreted as permanent. The calculated dipole moments are consistent with the experimental data in the order of magnitude. |
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