Zobrazeno 1 - 10
of 24
pro vyhledávání: '"J.R. Gosselin"'
Publikováno v:
Materials Research Bulletin. 10:41-49
Single crystals of monoclinic 4C-type pyrrhotite (Fe 7 S 8 ) with Fe/S ratios of 0.879, 0.872 and 0.867, have been grown, and oriented slices have been examined by Mossbauer spectroscopy, both with and without an applied external magnetic field. Four
Publikováno v:
Le Journal de Physique Colloques. 37:C4-11
Summarised here are the conclusions of an investigation by differential thermal analysis, magnetic susceptibility, Mossbauer spectroscopy, electrical conductivity and thermoelectric power on single crystal Fe0.996S. There is an increase in conductivi
Publikováno v:
Journal of Solid State Chemistry. 17:43-48
Mossbauer spectra have been recorded for single crystals of very nearly stoichiometric FeS and Fe 0.93 S at temperatures between 80 and 600°K. The spectra of nearly stoichiometric FeS indicate that the low-temperature 2C structure with spins ∥ c p
Publikováno v:
Physica Status Solidi (a). 40:K25-K29
Publikováno v:
Solid State Communications. 19:799-803
The conductivity and thermoelectric power of single crystals of Fe 0.996 S have been recorded at temperatures between 80° and 530°K. The material appears to be a p -type semiconductor with band-gap 0.04 eV at low temperatures and a not-well-behaved
Publikováno v:
Journal of Physics and Chemistry of Solids. 38:1153-1159
Magnetic susceptibilities and Mossbauer spectra recorded at temperatures between 4° and 300°K show that the low temperature form of Cu 5 FeS 4 , bornite, orders magnetically at 76±2°K. At a lower temperature 8°K a second magnetic phase transitio
Publikováno v:
Canadian Journal of Earth Sciences. 14:1-15
Iron oxide compounds in 12 selected Canadian soil samples have been characterized by Mössbauer, X-ray, chemical, infrared absorption, and differential thermal methods. Chemical differentiation provides useful information about the forms of iron comp
Publikováno v:
Journal of Physics C: Solid State Physics. 6:1661-1672
The Mossbauer spectra of two compositions of hexagonal Ni1-xS doped with 2%57Fe are obtained at various temperatures from 4.2 to 300 K at Tc=244 K in the first and 221 K in the second, a first-order phase transition occurs between an antiferromagneti
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