منابع مشابه
Electronic spin state of iron in lower mantle perovskite.
The electronic spin state of iron in lower mantle perovskite is one of the fundamental parameters that governs the physics and chemistry of the most voluminous and massive shell in the Earth. We present experimental evidence for spin-pairing transition in aluminum-bearing silicate perovskite (Mg,Fe)(Si,Al)O(3) under the lower mantle pressures. Our results demonstrate that as pressure increases,...
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The electronic structures of iron and manganese oxide and related minerals are investigated using Self-Consistent Field Xa Scattered Wave molecular orbital calculations on finite atomic clusters. Calculations on Fe0 6, FeO4, MnO6 and Fe04(OH)2 coordination polyhedra are used to investigate the nature of chemical bonds, electronic spectra, magnetism, and mechanisms of electron transport in these...
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Presently, the ferrites industry consumes large amounts of iron osides obtained by spray roasting of steel pickling liquors. The aim of this paper is to propose the synthesis of optimal iron osidcs by oxyprecipitation of steel pickling liquors in order to obtain Bahexafenite wit11 high magnetic properties using the ceramic process. As a raw material. i t was used sulphuric liqoors with iron con...
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This program aims at producing the next generation of molecular chemical and biological sensors [1]. Is is an interdisciplinary effort to manufacture electronic "noses" from arrays of nanostructured metal oxide sensors, each of which is specific to a given gas. Specificity in nanostructured oxides is achieved by exploiting their structure sensitivity. The ongoing research focuses on the study o...
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ژورنال
عنوان ژورنال: Journal of the Magnetics Society of Japan
سال: 2001
ISSN: 0285-0192
DOI: 10.3379/jmsjmag.25.715