Thin Polymer Layers with Superparamagnetic Properties | Zendy

Κ. Trommer | Zendy; Carina Petzold | Zendy; Bernd Morgenstern | Zendy

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Thin Polymer Layers with Superparamagnetic Properties

Author(s) -

Κ. Trommer,

Carina Petzold,

Bernd Morgenstern

Publication year - 2015

Publication title -

journal of polymers

Language(s) - English

Resource type - Journals

eISSN - 2356-7570

pISSN - 2314-6877

DOI - 10.1155/2015/745751

Subject(s) - superparamagnetism , materials science , coercivity , nanoparticle , hysteresis , saturation (graph theory) , polymer , magnetic nanoparticles , magnetic hysteresis , nanotechnology , magnetization , condensed matter physics , composite material , magnetic field , physics , mathematics , quantum mechanics , combinatorics

Superparamagnetic particles were widely used in medical applications as well as for magnetic sensors and actuators. Generally, the size of the particles is in the range of 10–20 nm. To use such particles in large-scale applications, a simple processing as well as the use of commercially available particles is required. Therefore superparamagnetic nanoparticles available on the market were incorporated in flexible polymer films and the magnetic properties of the films were investigated. At ambient temperature no significant hysteresis was observed, indicating the superparamagnetic properties. Films containing up to 25% nanoparticles were prepared. The films show a saturation magnetization of 13.8 Am2/kg and a coercivity of 7 Oe at ambient temperature

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