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Magnetization of Magnetite Nanoparticles Mediums with Weak Magnetic Dipole–Dipole Interaction

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Magnetization expression of weak interacting (mH/kT = 1–1.5) magnetite nanoparticles mediums was determined. Experimental and calculated magnetization curves, initial magnetic susceptibility of magnetite nanoparticle mediums were compared. It is showed are agree. Additional term of the magnetization is sufficient at weak and middle magnetic fields and at large magnetic fields it leads to zero. The maximum value of additional term is determined as mH/kT = 1.566 and it is linear function of magnetic moments and parabolic function of concentration of magnetite
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Keywords: INITIAL MAGNETIC SUSCEPTIBILITY; MAGNETIC DIPOLE-DIPOLE INTERACTION; MAGNETITE NANOPARTICLES MEDIUMS; MAGNETIZATION

Document Type: Research Article

Publication date: 2011-03-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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