J. Phys. IV France
Volume 137, November 2006
Page(s) 161 - 164
Publié en ligne 23 décembre 2006
35th Winter School on Wave and Quantum Acoustics
J. Bodzenta, M. Dzida and T. Pustelny
J. Phys. IV France 137 (2006) 161-164

DOI: 10.1051/jp4:2006137033

Investigation of a ferronematic cell influenced by a magnetic filed

C. Tyszkiewicz1, T. Pustelny1 and E. Nowinowski-Kruszelnicki2

1  Silesian University of Technology, Institute of Physics, 2 Krzywoustego Str., 44-100 Gliwice, Poland
2  Military University of Technology, Institute of Applied Physics, 2 Kaliskiego Str., 00-908 Warsaw, Poland

(Published online 23 December 2006)

This paper presents the optical study of the magnetically induced change of the spatial orientation of the directors' field in a ferronematic. This paper presents the investigations of the ferronematic that base on 6CHBT nematic liquid crystal. Magnetic field induces one-dimensional distribution of the tilt angle of a directors filed. On a basis of the optical measurements the mean volume concentration of magnetic particles was determined. Moreover the range of magnetic field intensity was determined in which the distribution of tilt angle can be described in scope of the Burylov-Raikher theory and the small tilt angle approximation.

© EDP Sciences 2006