Results 61 to 70 of about 6,035 (144)
Mössbauer Study of Weathered H-meteorite from the Desert of Oman
Sultan Qaboos University Journal for ScienceA number of meteorites from the desert of Oman, classified as H-chondrites, with known and unknown ages, were studied by using 57Fe Mössbauer spectroscopy to determine their Fe3+-bearing compositions.
Ahmed D. Al-Rawas +7 more
doaj +1 more source
Fully Compensated Ferrimagnetic Properties of (Cr,Fe)S Compound with a Pyrrhotite‐Type Structure
Small, EarlyView.Pyrrhotite‐type crystal structure of (Cr,Fe)S compound. The fabrication conditions for obtaining a single phase of the non‐equilibrium phase were optimized. The temperature dependence of the magnetization exhibits the typical behavior of compensated ferrimagnetism. A large magnetic coercivity of the (Cr,Fe)S compound.
Weida Yin +8 more
wiley +1 more source
A Review on Jahn–Teller Distortions in Prussian Blue Analogs Molecular Magnets
The Chemical Record, EarlyView.This review highlights the central role of the Jahn–Teller effect in governing structural stability and electrochemical performance in Prussian blue analogs (PBAs). It establishes clear structure–property relationships and summarizes effective mitigation strategies, providing design guidelines for developing stable, high‐performance PBA‐based energy ...
Nilasha Maiti +2 more
wiley +1 more source
Estudio Minerológico de Suelos Agrícolas por Espectroscopia Mössbauer
Revista de Investigación de Física, 1999 Los compuestos de hierro (Fe) son muy comunes en la naturaleza. En el caso de suelos, se presenta en forma de sesquióxidos de hierro, tales como óxidos, hidróxidos y oxihidróxidos, así como cationes de sustitución en arcillas.
María L. Cerón L. +2 more
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In situ mapping of iron oxidation in laminar metal fuel flames using X‐ray absorption spectroscopy
Journal of Synchrotron Radiation, EarlyView.For the first time an iron metal flame has been mapped by in situ X‐ray absorption spectroscopy. Strong gradients in oxidation state and phase composition across the metallic core and the flame front were found with FeO peaking at the visible flame front and Fe3O4 forming further beyond.Metal fuels such as iron are promising carbon‐free energy carriers
Lukas Braun +7 more
wiley +1 more source
Mössbauer forward scattering spectra of ferromagnets in radio-frequency magnetic field [PDF]
Ядерна фізика та енергетика, 2012 The transmission of Mössbauer radiation through a thick ferromagnetic crystal, subjected to the radio-frequency (rf) magnetic field, is studied. A quantum-mechanical dynamical scattering theory is developed, taking into account both the periodical ...
A. Ya. Dzyublik +5 more
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Crystal structure and magnetic properties of Li1-xNaxFePO4 based on Mössbauer spectroscopy
AIP Advances, 2017 The Na-doped Li1-xNaxFePO4 (x = 0.0, 0.01, 0.05, 0.1, 1) samples were synthesized by solid-state reaction method and investigated with X-ray diffractometer (XRD), vibrating sample magnetometer (VSM) and Mössbauer spectrometer.
Byung Ug Ko +4 more
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Revista Brasileira de Ciência do Solo, 2005 Solos magnéticos derivados de tufito da região do Alto Paranaíba (MG) têm mineralogia bastante variável, mas são relativamente ricos em óxidos de Fe isoestruturais ao espinélio, mais especificamente: (Ti, Mg)-magnetita e (Ti, Mg)-maghemita.
Fernando Dias da Silva +4 more
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Ferrites nanoparticles MFe2O4 (M = Ni and Zn): hydrothermal synthesis and magnetic properties
Boletín de la Sociedad Española de Cerámica y Vidrio, 2008 MFe2O4 (M = Ni and Zn) nanoparticles were prepared by the hydrothermal method. The obtained samples were characterized by X-ray and electron diffraction, Scanning and Transmission Electron Microscopy and Mössbauer spectroscopy.
Pérez Mazariego, J. L. +7 more
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Croatica Chemica Acta, 2015 Layered double hydroxides (LDHs) are one of the very important nano-carriers for drug delivery, due to their many advantageous features, such as the ease and low-cost of preparation, low cytotoxicity, good biocompatibility, protection for the ...
E. Kuzmann +9 more
doaj +1 more source