RUSSIAN JOURNAL OF EARTH SCIENCES VOL. 7, ES4003, doi:10.2205/2005ES000177, 2005

2005ES000177-fig02.html
Figure 2. (a) shows the relative area of magnetically split Smagn components (%) in the Mössbauer spectra of the films with different iron oxide concentrations (Cv). The shaded rectangles denote the rock compositions whose spectra are represented by a superparamagnetic (SP) doublet; (b) the saturation magnetization values (Js) for the films with different volumetric Cv concentrations: the black circles denote the values of specific saturation magnetization of the films (Jsf); the blue squares, the specific saturation magnetization of nanoparticles calculated using the weight content of magnetite Cp , the latter was estimated proceeding from the contents of the components developed in the course of the film synthesis; the red solid circles denote the specific saturation magnetization of real maghemite particles (for Cv values lower than or equal to 11%) and those of magnetite (for Cv values lower than or equal to 20%). These calculations were made only using corrections for the magnetically ordered particles in the samples (Figure 2a). The broken lines are drawn to mark the values characteristic of maghemite and magnetite bulk compositions. The shaded rectangle is shown for the values, most of the spectra of which were represented by SP doublets. Therefore, the correction procedure involving Smagn could not be performed or was associated with significant errors.

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Citation: Gendler, T. S., A. A. Novakova, and E. V. Smirnov (2005), Specific magnetic structure forming in polymer nanocomposites containing magnetite nanoparticles, Russ. J. Earth Sci., 7, ES4003, doi:10.2205/2005ES000177.

Copyright 2005 by the Russian Journal of Earth Sciences
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