A Verwey-type charge-ordering transition in magnetite at 120 K leads to the formation of linear units of three iron ions with one shared electron, called trimerons. The recently-discovered iron pentoxide (Fe4O5) comprising mixed-valent iron cations at octahedral chains, demonstrates another unu...
Charge density of the metal/oxide interface is obtained from DFT calculations, as well as for the free surfaces involved. A homemade computer program was implemented to calculate charge redistribution between the constituting surfaces and iron / magnetite interfaces. This analysis makes it possible to...
Magneto-optical transitions inCoFe2O4andNiFe2O4spinel ferrites are investigated in comparison with those in isostructuralFe3O4.The Kerr angle and ellipticity of the ferrites have been measured by magneto-optic Kerr effect (MOKE) spectroscopy in the 1.5–5 eV region. The results indicate that thed...
Pressure tuning of charge ordering in iron oxide Sergey V. Ovsyannikov Maxim Bykov Leonid S. Dubrovinsky Nature Communications(2018) Nature Chemistry (Nat. Chem.)ISSN1755-4349(online)ISSN1755-4330(print) Sign up for theNature Briefingnewsletter — what matters in science, free to your inbox da...
Charge and orbital ordering in the low-temperature monoclinic structure of magnetite (Fe3O4) is investigated using the local spin density approximation with Coulomb interaction correction method. While the difference between t2g minority occupancies of FeB2+ and FeB3+ cations is large and gives ...
Iron cations in the surface layers exhibit charge and torbital ordering that is coupled with the lattice strains. Orbital ordering is present for various ... Zbigniew odziana - 《Physical Review Letters》 被引量: 69发表: 2007年 Scanning tunneling spectroscopy study of the electronic structure of...
Electronic-scale assessment of high-temperature oxidation mechanisms in a novel Fe-based alloy Wei-di Luo Ting-ping Hou Kai-ming Wu Journal of Iron and Steel Research International (2024) Cr-containing wastewater treatment based on Cr self-catalysis: a critical review Manshu Zhao Xinhua Wang...
The magnetic properties of monodisperse FeO–Fe3O4nanoparticles with different mean sizes and volume fractions of FeO synthesizedviadecomposition of iron o... A Lak,M Kraken,F Ludwig,... - 《Nanoscale》 被引量: 22发表: 2013年 加载更多来源...
Zener double exchange from local valence fluctuations in magnetite Magnetite (Fe3O4) is a mixed valent system where electronic conductivity occurs on the B site (octahedral) iron sublattice of the spinel structure. Below T... RJ Mcqueeney,M Yethiraj,S Chang,... - 《Physical Review Letters》...
decumbens in soils in southern of the Esp... FV Andrade - 《Bioscience Journal》 被引量: 14发表: 2010年 Equilibria of Sulphur between Liquid Iron and FetO-SiO2-CaO-MgO Slags Saturated with MgO A study has been made of the distribution equilibria between liquid iron and the slags of Fe_...