Surface effects and magnetic ordering in few-nanometer-sized ?-Fe2O3 particles

The magnetic properties of epsilon -Fe2O3 nanoparticles with an average size of 3.4 nm in a silica gel matrix are investigated using Mossbauer technique, electron spin resonance, and magnetic measurements. Two magnetic subsystems reveal in magnetic measurements. Paramagnetic subsystem is formed by t...

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Veröffentlicht in:	Journal of applied physics 2013-01, Vol.114 (16)
Hauptverfasser:	Balaev, DA, Dubrovskiy, A A, Shaykhutdinov, KA, Bayukov, O A, Yakushkin, S S, Bukhtiyarova, G A, Martyanov, ON
Format:	Artikel
Sprache:	eng
Schlagworte:	Electron spin resonance
Online-Zugang:	Volltext
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Zusammenfassung:	The magnetic properties of epsilon -Fe2O3 nanoparticles with an average size of 3.4 nm in a silica gel matrix are investigated using Mossbauer technique, electron spin resonance, and magnetic measurements. Two magnetic subsystems reveal in magnetic measurements. Paramagnetic subsystem is formed by the Fe(III) ions in the smallest (
ISSN:	0021-8979
DOI:	10.1063/1.4827839