Results 101 to 110 of about 14,146 (192)

Low temperatures and high water/rock ratios in asteroid (101955) Bennu's history based on X‐ray powder diffraction of returned samples

Meteoritics &Planetary Science, Volume 61, Issue 6, Page 1077-1094, June 2026.
Abstract Samples returned by NASA's OSIRIS‐REx mission from the carbonaceous asteroid (101955) Bennu hold clues about conditions in the early solar system and the formation of planetary bodies. Initial investigation of Bennu samples found that they are rich in phyllosilicates and other secondary minerals formed during aqueous alteration of a larger ...
A. J. King, P. F. Schofield, J. Najorka, H. C. Bates, S. S. Russell, T. J. McCoy, T. J. Zega, H. C. Connolly Jr, D. S. Lauretta   +8 more
wiley   +1 more source

Spin Crossover around Room Temperature: Effects of Remote Ligand Symmetry Breaking within Jäger‐Type Iron(II) Complexes

Zeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 8, 25 May 2026.
Remote symmetry breaking in Jäger‐type iron(II) complexes shifts stepwise spin crossover (SCO) profiles to continuous profiles with transition temperatures around room temperature. In a bottom‐up approach, we studied the feedback of slight molecular modifications on the spin crossover (SCO) properties of otherwise structurally conserved iron(II ...
Florian Daumann, Lucie Gottwalt, Phil Köhler, Gerald Hörner, Birgit Weber   +4 more
wiley   +1 more source

Synthesis and characterization of iron oxide magnetic nanoparticles

Nukleonika, 2017
Small particles of magnetite, i.e. 7.5, 13.4 and 14.1 nm in diameter, were obtained by the method of co-precipitation. The crystal structure and size distributions were determined by means of transmission electron microscopy and X-ray diffraction.
Surowiec Zbigniew, Budzyński Mieczysław, Durak Katarzyna, Czernel Grzegorz   +3 more
doaj   +1 more source

A New Approach for Investigating Iron Mineral Transformations in Soils and Sediments Using ⁵⁷Fe-Labeled Minerals and ⁵⁷Fe Mössbauer Spectroscopy. [PDF]

Environ Sci Technol, 2023
Notini L, Schulz K, Kubeneck LJ, Grigg ARC, Rothwell KA, Fantappiè G, ThomasArrigo LK, Kretzschmar R.   +7 more
europepmc   +1 more source

Mechanoluminescence of a Ba4Si6O16:Eu2+, Ho3+‐Containing Glass‐Ceramic: Experiments Under Different Loading Modes and Modeling

physica status solidi (a), Volume 223, Issue 10, 22 May 2026.
A glass‐ceramic from the BaO‐SiO2 chemical system emits light under mechanical loading provided it was submitted to UV irradiation prior to mechanical loading. This phenomenon is known as elasto‐mechanoluminescnence and, in the present case, it occurs thanks to the incorporation of a few percents of europium and holmium and an original synthesis route ...
Alexis Duval, Xavier Rocquefelte, Yann Gueguen, Dominic Ryan, Nicolas Godin, Patrick Houizot, Tanguy Rouxel   +6 more
wiley   +1 more source

SURFACE AND INTERFACE MAGNETISM BY MÖSSBAUER SPECTROSCOPY

, 1979
Le comportement magnétique d'un cristal ordonné magnétiquement, près d'une surface ou d'un interface est un phénomène très intéressant. Le moment magnétique local d'un atome superficiel, l'influence de la température sur l'aimantation de surface et l ...
T. Shinjo
core   +1 more source

Low-temperature Mössbauer spectroscopy of organs from ⁵⁷Fe-enriched HFE^(-/-) hemochromatosis mice: an iron-dependent threshold for generating hemosiderin. [PDF]

J Biol Inorg Chem, 2023
Vali SW, Lindahl PA.
europepmc   +1 more source

Expanded Scorpionate and Siderophore‐Inspired Ligands: From Foundational Designs to Modern Applications

European Journal of Inorganic Chemistry, Volume 29, Issue 15, 20 May 2026.
The concept of scorpionate ligands has evolved significantly since the introduction of tris(pyrazolyl)borate. By integrating a biological supramolecular ligand scaffold with the classic scorpionate architecture, researchers have made notable strides in mimicking the active sites of nitrogenase and advancing homogeneous catalysis.
Austin Winfield Medley, Trandon Allen Bender   +1 more
wiley   +1 more source

Yeast cells depleted of the frataxin homolog Yfh1 redistribute cellular iron: Studies using Mössbauer spectroscopy and mathematical modeling. [PDF]

J Biol Chem, 2022
Fernandez S, Wofford JD, Shepherd RE, Vali SW, Dancis A, Lindahl PA.   +5 more
europepmc   +1 more source

Fundamental magnetic properties of Greigite (Fe3S4)

, 2009
Over the last twenty years, greigite (Fe3S4), an authigenic magnetic iron sulphide mineral, has been increasingly identified in sulphate-reducing marine and lacustrine sedimentary systems.
Chang, Liao
core