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Based on our first principles computations, here we predict the existence of such a double spinel compound MgAlGaO4, formed by an equimolar mixing of MgAl2O4 normal and MgGa2O4 inverse spinels. After studying the details of its atomic and electronic structure, we use a cluster expansion based...
sites are shared equally by both A and B atoms, i.e., [B]t[AB]oO430. While the 0 K ground state configuration for any given spinel is always either the perfectly ordered normal or inverse structure, at a finite temperature a mixing of elemental species within the octahedral lattice or ...
MgV2O4 has the normal spinel structure, which is a slightly distorted cubic close packed array of oxygen anions where Mg cations are distributed in one-eighth of all tetrahedrally-coordinated sites (T) and V cations are distributed in half of all octahedrally-coordinated sites (M). The ...
(2012), who summarized the cubic spinel structure of IONPs synthesized by using Bacillus subtilis. Similarly, XRD results of HGNPs are in line with the findings of Jayaramudu et al. (2016a), who chemically synthesized the nanohydrogels for drug-delivery applications. Imaging techniques SEM and...
spinel structure Fe304.Thus, FeO1+x contains microdomains which are precursors of the next oxide phase (37).It is suggested here that such a clustering of units involving oxygen atoms with a lowercoordinationof metal atoms than is typical of the melt could join to form microdomainsinliquid ...
Nontrivial Recurrent Intergrowth Structure and Unusual Magnetic Behavior of Intermetallic Compound Fe32+δGe33As2 A newphase Fe 32+δ Ge 33 As 2 (δ≤ 0.136) was obtained by two-step synthesis from the elements.Fe 32+δ Ge 33 As 2 crystallizesin its own structure type ... AA Tsirlin,RA...
The details of the ${\\mathrm{Mn}}^{2+}$ spectra indicate a small degree of $A\\ensuremath{-}B$ disorder in this normal spinel. The ${\\mathrm{Fe}}^{3+}$ and ${\\mathrm{Mn}}^{2+}$ are located on $B$ and $A$ sites, respectively. 展开 ...
spinel crystal structure with a band gap of ~3.6–3.7 eV (Supplementary Figure S1a).27Compared with normal spinel, the inverse spinel structure features an alternative cation arrangement. In Zn2SnO4, all of the [SnVI] cations and half of the [ZnVI] cations occupy octahedral sites, ...
Supernormal enrichment of cadmium in sphalerite is frequently observed in some sedimentary-hosted zinc-lead deposits, although related fluid process remains unconstrained. At the Jinding Mississippi Valley-type deposit, a considerable portion of cadmium has been remobilized from early sphalerite through cou...