Magnetic and Optical Properties of γ-Fe2O3 Nanocrystals

Autor:	Ronald F. Ziolo, Vivek Mehrotra, R. D. MacMichael, John K. Vassiliou, Emmanuel P. Giannelis, Robert D. Shull
Rok vydání:	1994
Předmět:	chemistry.chemical_classification Matrix (chemical analysis) Magnetization Materials science Nanocrystal chemistry Absorption edge Ion exchange Analytical chemistry Radius Polymer Superparamagnetism
Zdroj:	Nanophase Materials ISBN: 9789401044691
DOI:	10.1007/978-94-011-1076-1_63
Popis:	γ-Fe2O3 nanocrystals with a mean radius of 4.2 nm have been synthesized in a polymer matrix by an ion exchange and precipitation reaction. Magnetization and susceptibility data from experiment and computer simulations indicate that the system is superparamagnetic. The optical absorption edge is red shifted with respect to that of an epitaxially-grown single-crystal film of γ-Fe2O3. The red shift is attributed to lattice strain in the small particles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::06dcc3c506098ca3a3be2737df579b46 https://doi.org/10.1007/978-94-011-1076-1_63 Zobrazit plný text záznamu