We report the results of magnetization and 57Fe Mossbauer spectroscopy measurements performed at 5-300K on composites containg Fe3O4 nanoparticles encased in polystyrene-type resins. After carrying out a suitable field treatment to decouple the particles from the matrix, a fraction of the particles freely rotate in response to an applied magnetic field.
Free Rotor ?Like Behaviour of Magnetite Nanoparticles in Polymeric Matrices
Foglia S;
2001
Abstract
We report the results of magnetization and 57Fe Mossbauer spectroscopy measurements performed at 5-300K on composites containg Fe3O4 nanoparticles encased in polystyrene-type resins. After carrying out a suitable field treatment to decouple the particles from the matrix, a fraction of the particles freely rotate in response to an applied magnetic field.File in questo prodotto:
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