Magnetic field induced assembling of nanoparticles in ferrofluidic liquid thin films based on Ni𝑥Fe1-𝑥Fe2O4

Bulletin of materials science

S Rajesh²  U S Sajeev¹  V S Abraham³  M R Anantharaman¹  S Swapna Nair¹ 

[1] Department of Physics, Cochin University of Science and Technology, Cochin 682 022, India$$Department of Physics, Cochin University of Science and Technology, Cochin 682 022, IndiaDepartment of Physics, Cochin University of Science and Technology, Cochin 682 022, India$$;Biophysics and Microscopy Group, University of Amsterdam, The Netherlands$$Biophysics and Microscopy Group, University of Amsterdam, The NetherlandsBiophysics and Microscopy Group, University of Amsterdam, The Netherlands$$;International School of Photonics, Cochin University of Science and Technology, Cochin 682 022, India$$International School of Photonics, Cochin University of Science and Technology, Cochin 682 022, IndiaInternational School of Photonics, Cochin University of Science and Technology, Cochin 682 022, India$$

关键词: Ferrofluids;    nickel ferrite;    field induced assembling;    ultra fine particles.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Ultra fine precursors for ferrofluid synthesis, belonging to the series, Ni_ð‘�?Fe_{1-ð‘�?}Fe₂O₄ (where `𝑥â€�? varies from `0’ to `0.6’ in steps of 0.1), were synthesized. Ferrofluids based on these fine particles were prepared with oleic acid as surfactant and kerosene as carrier. Ferrofluidic thin films were made on glass substrates and magnetic field induced laser transmission was studied. The pattern exhibited by the films under the influence of a magnetic field was observed with the help of a CCD camera. The analysis of results confirms the chain formation of particles in the presence of an applied magnetic field and their saturation at higher applied fields.

【 授权许可】

Unknown