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Surface spin freezing of ferrite nanoparticles evidenced by magnetization measurements
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10.1063/1.2163844
/content/aip/journal/jap/99/8/10.1063/1.2163844
http://aip.metastore.ingenta.com/content/aip/journal/jap/99/8/10.1063/1.2163844

Figures

Image of FIG. 1.
FIG. 1.

Typical nanoparticle size histogram fitted with a log-normal distribution law. The inset displays the TEM picture for sample E12.

Image of FIG. 2.
FIG. 2.

In-field Mössbauer spectra of samples at . The inset displays the canted spins fraction as a function of nanoparticle mean size.

Image of FIG. 3.
FIG. 3.

Temperature dependence of the saturation magnetization (the dotted line is an eye guide). The inset displays a typical hysteresis loop recorded at for sample E12.

Image of FIG. 4.
FIG. 4.

Temperature dependence of for samples E11 and E12.

Tables

Generic image for table
Table I.

is the crystalline mean size, and are the mean size and the polydispersity deduced from TEM, is the magnetization extrapolated to , and is the calculated thickness for the misaligned surface spin layer.

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/content/aip/journal/jap/99/8/10.1063/1.2163844
2006-04-18
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Surface spin freezing of ferrite nanoparticles evidenced by magnetization measurements
http://aip.metastore.ingenta.com/content/aip/journal/jap/99/8/10.1063/1.2163844
10.1063/1.2163844
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