Bulletin of the Russian Academy of Sciences Physics · 2023 · 10 citations · 19 references
Natural SciencesMaterials SciencePhysicsColloid ScienceCondensed Matter PhysicsSpectroscopyColloid ChemistryMagnetic NanomaterialsMagnetic Properties Of SolidsMagnetism In SolidsMagneto-optic MaterialsNanoparticle DispersionsBirefringenceColloidal NanoparticlesMagnetic BirefringenceMagnetic NanoparticlesMagnetiteNanomagnetismSize-dependent Magnetic PropertiesSuperparamagnetism
Abstract An experimental study is performed of the spectral dependences of effects of birefringence and dichroism in magnetic colloids with magnetite nanoparticles that have average sizes of 5.5 and 8 nm. It is shown that the magnitude of the effects in a sample with larger particles is approximately twice as high at identical volume concentrations. Possible reasons for this difference are analyzed with respect to the polydispersity of the samples, and to the possibility of their having magnetically hard and superparamagnetic particles. Calculations of the spectra of the effects of birefringence and dichroism are in good agreement with the experimental data.
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Tunable optical switch using magnetic fluids
H. E. Horng, C.-S. Chen, Kelvin Fang et al. · Applied Physics Letters · 2004 · 146 citations
Natural Sciences, Electrical Engineering, Materials Science +17
Static magneto-optical birefringence of size-sorted nanoparticles
E. Hasmonay, Emmanuelle Dubois, J.-C. Bacri et al. · The European Physical Journal B · 1998 · 115 citations