Abstract
The response in capacitance to low external magnetic fields (up to 0.1 T) of suspensions of spherical magnetic nanoparticles, single-wall carbon nanotubes (SWCNT), SWCNT functionalized with carboxyl group (SWCNT-COOH), and SWCNT functionalized with FeO nanoparticles in a nematic liquid crystal has been studied experimentally. The volume concentration of nanoparticles was and . Independent of the type and the volume concentration of the nanoparticles, a linear response to low magnetic fields (far below the magnetic Fréederiksz transition threshold) has been observed, which is not present in the undoped nematic.
- Received 26 July 2012
DOI:https://doi.org/10.1103/PhysRevE.87.014501
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