Instructions on the Use of the Mössbauer Data Index

Stevens, John G.; Stevens, Virginia E.

doi:10.1007/978-1-4757-5900-6_1

Cited by 2 publications

(3 citation statements)

References 3 publications

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“…At atomic level the elastic and inelastic parts of the electronic scattering are the Rayleigh and Compton components, whilst the nuclear resonant scattering is divided into nuclear-elastic events, in which the nucleus is left in the same ground-state sublevel as initially, and into nuclear-inelastic (or spin-flip) events in which the nuclear ground-state sublevel changes. These nuclear processes are illustrated in figure 2 which is based on the data in table 1, taken from Stevens and Stevens (1976). Incoherence arises at the atomic level through the atom being distinguishably different after the scattering event (and in principle 'labellable'), whilst it arises at the lattice level through some randomness in the scattering amplitudes a t the various sites.…”

Section: Classification Of Scattering Processesmentioning

confidence: 99%

The scattering of Mossbauer radiation by condensed matter

Champeney

1979

Rep. Prog. Phys.

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Experimental and theoretical work on the scattering of Mossbauer y radiation by condensed matter is reviewed, covering the period from 1958, and the subject is presented as having features akin to those of x-ray diffraction, inelastic neutron scattering and Mossbauer absorption spectroscopy. An outline of theoretical work on coherence and recoil effects for both electronic and nuclear resonant scattering is given. This is followed by a review of experiments on electronic (Rayleigh) scattering covering thermal diffuse scattering in crystals, Debye-Waller factors, soft modes and critical scattering, diffusion phenomena and amorphous materials, and plastic and liquid crystals, and a review of experiments on nuclear resonant scattering covering coherence interference and diffraction, the crystallographic phase problem, magnetic and quadrupole Mossbauer diffraction, dynamic theory and multiple scattering, cooperative excitation, refractive index, time domain experiments, and experiments based on detection of the conversion electrons.

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Section: Classification Of Scattering Processesmentioning

confidence: 99%

The scattering of Mossbauer radiation by condensed matter

Champeney

1979

Rep. Prog. Phys.

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“…Hyperfine parameters for D1 components may be disturbed by the overlapping of parameters characteristic for magnetite and maghemite nanoparticles, ferrihydrite, or pyrite, the presence of which was not found in the XRD analysis. However, their presence cannot be excluded by analyzing the results contained in the paper of Stevens et al [ 25 ]. The differences between hyperfine parameters for the identified aluminosilicates can also be related to the differences in the chemical composition (iron content, as confirmed by chemical analysis carried out with the SEM-EDS method) of the identified components, which were determined by the ionic forms of iron in these compounds.…”

Section: Resultsmentioning

confidence: 99%

“…The quality parameter of their fit (χ 2 ) did not exceed 2, and there were no differences between the curve illustrating the differences in the model and the experimental description, proving the presence of additional components. The mineralogical identification of hyperfine parameters was based on the Mössbauer Mineral Handbook [ 25 ].…”

Section: Methodsmentioning

confidence: 99%

Application of Mössbauer Spectroscopy for Identification of Iron-Containing Components in Upper Silesian Topsoil Being under Industrial Anthropopressure

et al. 2020

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The main objective of the presented preliminary study was the identification of iron-containing phases. Iron-containing phases had accumulated in organic topsoil horizons collected from an area that has long been affected by the steel industry and emissions from power plants. X-ray diffraction and Mössbauer spectroscopy methods were used for the determination of the iron-containing mineral phases in topsoil subsamples which, after two-staged separation, varied in terms of magnetic susceptibility and granulometry. The Mössbauer spectra were recorded using paramagnetic and magnetic components, although the latter occurred only in the strongly magnetic fraction. The central part of spectra was fitted by two doublets (D1 and D2), which were identified as aluminosilicates. Simultaneously, the experimental spectra were described using several Zeeman sextets (Z1, Z2, and Z3) corresponding to the occurrence of hematite and magnetite-like phases with iron in tetrahedral and octahedral sites. Identification of magnetic phases in the tested material, including hematite, led to the conclusion that soil contamination in the studied area was presumably caused by emissions from a nearby power plant. Magnetite-like phases with a different iron content detected in topsoil samples could be related to metallurgical and coking processes, reflecting the specificity of the industrial area from which the samples were taken. The specific composition of the iron-containing aluminosilicates also illustrated the intense and long-lasting impact of the steel and coking industries on the studied area.

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Instructions on the Use of the Mössbauer Data Index

Cited by 2 publications

References 3 publications

The scattering of Mossbauer radiation by condensed matter

The scattering of Mossbauer radiation by condensed matter

Application of Mössbauer Spectroscopy for Identification of Iron-Containing Components in Upper Silesian Topsoil Being under Industrial Anthropopressure

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