Daniel Stoenescu

TL;DR: This article investigates by small-angle X-ray scattering, magneto-optics, and magnetometry the influence of a magnetic field on the isotropic phase of goethite nanorods and proposes a model that explains all experimental observations in a consistent way.

TL;DR: In this paper, aqueous suspensions of pure goethite (α-FeOOH) nanorods were examined and it was shown that the magnetic-field induced birefringence displayed a nonmonotonic dependence upon field intensity.

TL;DR: In this article, a bistable device comprising a liquid crystal material, aligning means, which orient the liquid crystal to provide two stable or metastable textures, means for applying electric signals enabling to switch between the two textures, a polarizer (10) associated with the front surface of the device, placed inside or outside same, a reflective, specular or diffusing element, placed on the rear surface of liquid crystal, inside and outside the device allowing light to pass through the device twice and to return towards the observer or towards additional optical elements, and a compensator (20

TL;DR: In this article, the authors examined the behavior of new types of mixtures with the dimeric liquid crystal [4 ',4 '-(heptane-1,7-diyl)bis(([1 ',1 ''-biphenyl]4 ''-carbo-nitrile))] (CB7CB).

TL;DR: In this paper, a reflective liquid crystal display is presented, which consists of a liquid crystal material (30) contained between two parallel substrates (20, 40) provided with aligning means on the electrodes to orient the liquid crystal and enable at least two alternative distinct textures that are stable or metastable in the absence of a field to be obtained, means for applying electrical signals to the liquid crystals to perform switching by enabling anchoring on at least one of the two substrates to be broken, a polarizer (10) associated with the front face of the device and oriented