Surface effects in noninteracting and interacting γ-Fe2O3 nanoparticles

Autor:	Marc Nogues, Corinne Chanéac, Elisabeth Tronc, Dominique Mailly, Franco Lucari, A.M. Testa, Natividad Gálvez, Wolfgang Wernsdorfer, Franco D'Orazio, Jean-Pierre Jolivet, Dino Fiorani, Jean-Marc Greneche
Rok vydání:	2003
Předmět:	Magnetization Materials science Exchange bias Mössbauer effect Condensed matter physics Chemical physics Mössbauer spectroscopy Nanoparticle Coercivity Condensed Matter Physics Magnetic hysteresis Magnetic susceptibility Electronic Optical and Magnetic Materials
Zdroj:	Journal of Magnetism and Magnetic Materials. 262:6-14
ISSN:	0304-8853
DOI:	10.1016/s0304-8853(03)00011-8
Popis:	From AC susceptibility, magnetization and Mossbauer spectroscopy measurements, we show the dominant role of the surface properties and surface-to-core exchange coupling on the static and dynamic properties of γ-Fe 2 O 3 particles (2.7, 4.6 and 8.7 nm) dispersed in a polymer or powdered. Measurements of the switching field of individual particles are presented, demonstrating basic surface effects.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bb3f07f3fea3ef4d9824281662e3552f https://doi.org/10.1016/s0304-8853(03)00011-8 Zobrazit plný text záznamu Full Text from ScienceDirect