Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8156549 | Journal of Magnetism and Magnetic Materials | 2014 | 5 Pages |
Abstract
We investigated experimentally the magneto-optical and dielectric properties of magnetic-nanoparticle-doped nematic liquid crystals (ferronematics). Our studies focus on the effect of the very small orienting bias magnetic field Bbias, and that of the nematic director pretilt at the boundary surfaces in our systems sensitive to low magnetic fields. Based on the results we assert that Bbias is not necessarily required for a detectable response to low magnetic fields, and that the initial pretilt, as well as the aggregation of the nanoparticles play an important (though not yet explored enough) role.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
T. Tóth-Katona, P. Salamon, N. Ãber, N. TomaÅ¡oviÄová, Z. Mitróová, P. KopÄanský,