Results 71 to 80 of about 41,619 (168)

Tailoring Fe/Ag Superparamagnetic Composites by Multilayer Deposition

open access: yes, 2005
The magnetic properties of Fe/Ag granular multilayers were examined by SQUID magnetization and Mossbauer spectroscopy measurements. Very thin (0.2 nm) discontinuous Fe layers show superparamagnetic properties that can be tailored by the thickness of both
C. Van Haesendonck   +10 more
core   +1 more source

A Crystallographic Shear Driven by Oxygen Insertion in (LuFeO3)nLuFe2O4

open access: yesChemistryEurope, EarlyView.
Layered structures (LuFeO3)nLuFe2O4 exhibit a common structural transformation upon oxygen uptake. Although the LuFeO3 units do not directly participate in oxygen insertion, these inactive layers nevertheless influence the temperature at which oxygen absorption occurs.
Tianyu Li   +7 more
wiley   +1 more source

Debye temperature of disordered bcc-Fe-Cr alloys

open access: yes, 2009
Debye temperature, TD, of Fe100-xCrx disordered alloys with ...
Adams J J   +16 more
core   +1 more source

The Newly Discovered Pathway for Oxygen Evolution Reaction: In‐Situ/Operando Characterization Techniques for Catalyst Development

open access: yesCarbon Energy, EarlyView.
This study introduces a newly discovered oxide path mechanism (OPM) for the oxygen evolution reaction (OER), emphasizing the role of in‐situ and operando characterization techniques in unraveling catalyst behavior under realistic conditions. The integration of advanced spectroscopic methods provides new mechanistic insights for the design of highly ...
Rabia Khalid   +4 more
wiley   +1 more source

57Fe Mössbauer spectroscopy investigation of La0.7Ca0.3Mn0.5Fe0.5O3

open access: yesResults in Physics, 2016
A La0.7Ca0.3Mn0.5Fe0.5O3 (LCMFO) ceramic sample was produced using conventional solid-state reactions. According to the X-ray diffraction data, the obtained sample has an orthorhombic space group Pnma (a = 5.482(2) Å, b = 7.739(3) Å, c = 5.446(3) Å ...
V.S. Zakhvalinskii   +6 more
doaj   +1 more source

T½ Tuning in a Synergistic BODIPY‐Tetrazole Fe(II) Spin‐Crossover‐Photoluminescence System via Co‐Ligand Variation

open access: yesChemistry – A European Journal, EarlyView.
We report a modular spin crossover‐photoluminescence (SCO‐PL) system: heteroleptic, mononuclear Fe(II) coordination compounds bearing equatorial BODIPY fluorophores that exhibit synergistic PL response upon spin state switching. Exchanging apical nitrile co‐ligands tunes electronic and structural properties, giving precise control over the SCO and PL ...
Martin Huber   +4 more
wiley   +1 more source

Mössbauer study of a tetrakis (pentafluorophenyl) porphyrin iron (III) chloride in comparison with the fluorine unsubstituted analogue

open access: yesNukleonika, 2015
Mössbauer investigations, in association with density functional theory (DFT) calculations, have been conducted for the molecular and electronic structures of iron (III) [tetrakis (pentafluorophenyl)] porphyrin chloride [(F20TPP)Fe:Cl], as a Fe(III ...
Kaczmarzyk Tomasz   +3 more
doaj   +1 more source

Mössbauer and Raman spectroscopic characterization of iron and carbon in iron-loaded Japanese cypress charcoal

open access: yesJournal of Wood Science, 2020
Japanese cypress (Chamaecyparis obtusa) wood powder impregnated with Fe3+ ions was carbonized using one-step and two-step procedures, and the iron-loaded charcoal was examined using Mössbauer and Raman spectroscopy to elucidate the physicochemical states
Takayuki Yamagishi   +6 more
doaj   +1 more source

Interplay between Superconductivity and Magnetism in Rb0.8Fe1.6Se2 under Pressure

open access: yes, 2011
High-pressure magnetization, structural and 57Fe M\"ossbauer studies were performed on superconducting Rb0.8Fe1.6Se2.0 with Tc = 32.4 K. The superconducting transition temperature gradually decreases on increasing pressure up to 5.0 GPa followed by a ...
Deisenhofer, Joachim   +8 more
core   +1 more source

Spin‐Crossover Modulated Luminescence in Materials and Molecular Complexes

open access: yesHelvetica Chimica Acta, EarlyView.
The synergistic coupling of spin‐crossover and luminescent properties holds great promise for the development of multifunctional and stimuli‐responsive molecular materials. This contribution provides a comprehensive overview of the field, surveying the possible coupling mechanisms, the various synthetic strategies and their potential applicability, as ...
Charlotte Egger, Claude Piguet
wiley   +1 more source

Home - About - Disclaimer - Privacy