Influence of a surfactant on hyperfine magnetic interactions in goethite nanoparticles

Autor:	T.S. Gendler, E. V. Smirnov, Alla A. Novakova, E. F. Makarov
Rok vydání:	2007
Předmět:	Goethite Materials science Aqueous solution Pulmonary surfactant visual_art Mössbauer spectroscopy Analytical chemistry visual_art.visual_art_medium General Physics and Astronomy Nanoparticle Antiferromagnetism Alkali metal Hyperfine structure
Zdroj:	Bulletin of the Russian Academy of Sciences: Physics. 71:1282-1285
ISSN:	1934-9432 1062-8738
Popis:	Structural and magnetic characteristics of nanosized goethite (α-FeOOH) samples prepared by chemical precipitation of an iron (III) salt and alkali in aqueous solutions with different contents of a surfactant (ethyl alcohol) have been investigated. Changes in the morphology, structure, and sizes of antiferromagnetic nanoparticles, caused by the presence of the surfactant in the deposition solution, have been established by Mossbauer spectroscopy, magnetic measurements, X-ray diffraction, and electron microscopy. It is determined that an increase in the surfactant concentration leads to the bimodal size distribution of nanoparticles; in this case, the fraction of small (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::372c1f7da91670b8e69973f7ab2a34c1 https://doi.org/10.3103/s1062873807090195 Zobrazit plný text záznamu Full text from SpringerLink