Investigation of polarization magnetooptic responses of a low-concentration ferrofluid
- Authors: Fofanov Y.A.1, Pleshakov I.V.2,3, Prokof’ev A.V.2,3, Bibik E.E.4
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Affiliations:
- Institute of Analytical Instrument Making
- Ioffe Physical Technical Institute
- Petr Velikii St. Petersburg State Polytechnic University
- St. Petersburg State Technological Institute (Technical University)
- Issue: Vol 42, No 10 (2016)
- Pages: 1054-1056
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/201811
- DOI: https://doi.org/10.1134/S1063785016100205
- ID: 201811
Cite item
Abstract
A highly sensitive laser polarization-optical technique was developed and applied to investigations of a ferrofluid, which was placed in a magnetic field. A colloid solution of magnetite in kerosene was used as a sample. It was shown that the magnetooptic response of this substance is reliably registered at a volume solid-phase content of down to ~10–5. It was revealed that within a very wide range of changes in the solution concentration, a quadratic dependence of the observed birefringence value on the low-intensity field (up to several tens of oersted) is retained.
About the authors
Ya. A. Fofanov
Institute of Analytical Instrument Making
Email: ivanple@yandex.ru
Russian Federation, St. Petersburg, 198103
I. V. Pleshakov
Ioffe Physical Technical Institute; Petr Velikii St. Petersburg State Polytechnic University
Author for correspondence.
Email: ivanple@yandex.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 195251
A. V. Prokof’ev
Ioffe Physical Technical Institute; Petr Velikii St. Petersburg State Polytechnic University
Email: ivanple@yandex.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 195251
E. E. Bibik
St. Petersburg State Technological Institute (Technical University)
Email: ivanple@yandex.ru
Russian Federation, St. Petersburg, 195251