Capacitance changes in ferronematic liquid crystals induced by low magnetic fields

Natália Tomašovičová, Milan Timko, Zuzana Mitróová, Martina Koneracká, Michal Rajňak, Nándor Éber, Tibor Tóth-Katona, Xavier Chaud, Jan Jadzyn, Peter Kopčanský

Research output: Contribution to journalArticle

48 Citations (Scopus)

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 Fe3O4 nanoparticles in a nematic liquid crystal has been studied experimentally. The volume concentration of nanoparticles was ρ1=10-4 and ρ2= 10-3. 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.

Original languageEnglish
Article number014501
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume87
Issue number1
DOIs
Publication statusPublished - Jan 3 2013

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Capacitance changes in ferronematic liquid crystals induced by low magnetic fields'. Together they form a unique fingerprint.

  • Cite this

    Tomašovičová, N., Timko, M., Mitróová, Z., Koneracká, M., Rajňak, M., Éber, N., Tóth-Katona, T., Chaud, X., Jadzyn, J., & Kopčanský, P. (2013). Capacitance changes in ferronematic liquid crystals induced by low magnetic fields. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 87(1), [014501]. https://doi.org/10.1103/PhysRevE.87.014501