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SAW Investigation of Structural Changes in Liquid Crystals Doped with Magnetic Particles

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The surface acoustic waves (SAW) were used to study the effect of magnetic particles on liquid crystals (6CHBT) structural changes in electric and weak magnetic fields using measurements of the attenuation of SAW propagating along ferronematic liquid crystals. The magnetic nanoparticles in low volume concentration ( = 1 · 10–4, 1 · 10–5, 5 · 10–5) were added to the liquid crystal during its isotropic phase. In contrast to undoped 6CHTB the distinctive SAW attenuation responses induced by both electric and weak magnetic fields in studied ferronematic liquid crystals have been observed suggesting both structural changes and the orientational coupling between both electric and magnetic moments of magnetic particles and the director of the liquid crystal.
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Document Type: Research Article

Publication date: January 1, 2018

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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