Low-temperature susceptibility of concentrated magnetic fluids

The Journal of Chemical Physics
Alexander F Pshenichnikov, Alexander V Lebedev

Abstract

The initial susceptibility of concentrated magnetic fluids (ferrocolloids) has been experimentally investigated at low temperatures. The results obtained indicate that the interparticle dipole-dipole interactions can increase the susceptibility by several times as compared to the Langevin value. It is shown that good agreement between recent theoretical models and experimental observations can be achieved by introducing a correction for coefficients in the series expansion of susceptibility in powers of density and aggregation parameter. A modified equation for equilibrium susceptibility is offered to sum over corrections made by Kalikmanov (Statistical Physics of Fluids, Springer-Verlag, Berlin, 2001) and by B. Huke and M. Lucke (Phys. Rev. E 67, 051403, 2003). The equation gives good quantitative agreement with the experimental data in the wide range of temperature and magnetic particles concentration. It has been found that in some cases the magnetic fluid solidification occurs at temperature several tens of kelvins higher than the crystallization temperature of the carrier liquid. The solidification temperature of magnetic fluids is independent of particle concentration (i.e., magneto-dipole interparticle interactions) and ...Continue Reading

References

Aug 1, 1994·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·T S Chow
Sep 16, 2000·Physical Review Letters·H MamiyaT Furubayashi
Dec 2, 2000·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·B Huke, M Lucke
Nov 3, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·A O Ivanov, O B Kuznetsova
Sep 21, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Zuowei WangHanns Walter Müller
Jun 6, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·B Huke, M Lücke

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Citations

May 26, 2007·The Journal of Chemical Physics·Konstantin I Morozov
May 17, 2011·The Journal of Chemical Physics·Alexander F PshenichnikovAlexey O Ivanov
Dec 12, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·A F Pshenichnikov, A S Ivanov
Oct 21, 2014·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Philip J CampAlexey O Ivanov
Oct 24, 2019·Physical Review. E·Alexander V LebedevAlexander F Pshenichnikov
Apr 5, 2013·Physical Review Letters·Sofia KantorovichFrancesco Sciortino

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