Results 81 to 90 of about 32,026 (209)

Spin‐Crossover Modulated Luminescence in Materials and Molecular Complexes

Helvetica 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

Magnetic Properties of Ferritin at Different Levels of Degradation: Implications for MRI‐Based Iron Quantification in the Brain

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Ferritin's iron core exhibits complex magnetic properties, as suggested by magnetometry and Mössbauer spectroscopy, which remain incompletely understood. In particular, the antiferromagnetic inner core could influence the accuracy of iron quantification using MRI and raise concerns about postmortem validation studies involving degraded
Stefan Ropele, Sowmya Sunkara, Snježana Radulović, Saška Lipovšek, Michael Stöger‐Pollach, Christoph Birkl, Walter Gössler, Christian Enzinger, Gerd Leitinger   +8 more
wiley   +1 more source

TITANOMAGNETITE ORES: MINERAL COMPOSITION AND MÖSSBAUER SPECTROSCOPY [PDF]

Минералогия, 2017
Chemical and mineral composition of ilmenite-titanomagnetite ores from Chiney, Sludinsky, Bystrinsky and Kruchininsky deposits (East Siberia) are studied and compared with those from the Panzhihua pluton in China using microprobe and X-ray diffraction ...
V.P. Lyutoev, B.I. Gongalsky, A.B. Makeyev, A.Yu. Lysyuk, L.O. Magazina, V.I. Taskaev   +5 more
doaj  

Structure and Magnetic Properties of Bi5Ti3FeO15 Ceramics Prepared by Sintering, Mechanical Activation and Edamm Process. A Comparative Study

Archives of Metallurgy and Materials, 2016
Three different methods were used to obtain Bi5Ti3FeO15 ceramics, i.e. solid-state sintering, mechanical activation (MA) with subsequent thermal treatment, and electrical discharge assisted mechanical milling (EDAMM).
Jartych E., Pikula T., Mazurek M., Franus W., Lisinska-Czekaj A., Czekaj D., Oleszak D., Surowiec Z., Aksenczuk A., Calka A.   +9 more
doaj   +1 more source

Cation Distribution in Natural Chromites from Oman

Sultan Qaboos University Journal for Science, 1996
Two specimens or natural chromite from the Oman ophiolite were studied using Mossbauer Spectroscopy (MS), X-ray Diffraction (XRD). and Scanning Electron Microscopy (SEM). The diffraction patterns obtained at room temperature showed that the two specimens
Z. Al-Alawi, A.M. Gismelseed, A.A. Yousif, M.A. Worthing, H.H. Sutherland, A.M. Rais, M.E. El-Zain, A.D. Al-Rawas   +7 more
doaj   +1 more source

Insight into the evolution of the Tagish Lake carbonaceous chondrite by analysis of the oxygen isotopic composition of extracted water and Mössbauer spectroscopy [PDF]

, 2001
Analysis of oxygen isotopes in water from Tagish Lake together with Mössbauer Spectroscopy suggest some similarities to the CI group of meteorites but also suggest differences in the extent of parent body hydrothermal ...
Baker, Lee, Bland, P. A., Franchi, Ian, Pillinger, Colin, Wright, Ian   +4 more
core   +1 more source

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

, 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, Felser, Claudia, Ksenofontov, Vadim, Loidl, Alois, Medvedev, Sergey A., Palasyuk, Taras, Schoop, Leslie M., Tsurkan, Vladimir, Wortmann, Gerhard   +8 more
core   +1 more source

Facilitating Sodium‐Ion Diffusion in Fe‐Doped Co3O4 for High‐Rate Performance

Small, EarlyView.
The limited rate performance of cobalt oxide (Co3O4) materials restricts their applicability in the rapid charge–discharge process of sodium‐ion batteries (SIBs). Iron (Fe) lattice doping can facilitate sodium‐ion diffusion by narrowing the bandgap and modulating the Co─O bond length.
Yonghuan Fu, Guowei Sun, Rene Lucka, Qijun Song, Franz Renz, Huaping Zhao, Zhijie Wang, Yong Lei   +7 more
wiley   +1 more source

Thermally activated magnetization reversal in bulk BiFe0.5Mn0.5O3

, 2013
We report on the synthesis and characterization of BiFe0.5Mn0.5O3, a potential type-I multiferroic compound displaying temperature induced magnetization reversal.
Bolzoni, Fulvio, Cabassi, Riccardo, Calestani, Gianluca, Delmonte, Davide, Gilioli, Edmondo, Lantieri, Marco, Mezzadri, Francesco, Migliori, Andrea, Pernechele, Chiara, Ritter, Clemens, Solzi, Massimo, Spina, Gabriele   +11 more
core   +1 more source

Breaking the ORR Trade‐Off via Mg‐Steered Fe‐N4 Pyridinic Conversion

Small, EarlyView.
A Mg‐assisted sacrificial templating strategy is developed to selectively regulate the coordination environment of Fe–N4 sites. This approach induces an active site conversion from S1 to S2, enabling enhancement of oxygen reduction activity and durability. ABSTRACT Single‐atom Fe sites coordinated by pyrrolic nitrogen (Fe‐Npyrr‐C) are highly active for
Si‐Qi Sun, Ya‐Peng Cheng, Hai‐Ning Zhang, Jia‐Min Lyu, Xiao‐Yun Li, Ke Lyu, Ming‐Hui Sun, Shen Yu, Wen‐Mao Tu, Andreu Cabot, Li‐Hua Chen   +10 more
wiley   +1 more source