Results 221 to 230 of about 35,160 (247)
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Structure of V–MgO and MgO–V interfaces
Philosophical Magazine A, 1995Abstract V and MgO films of various thicknesses were deposited on the (001)MgO surface of a MgO substrate by molecular beam epitaxy to prepare two different interfaces: V[sbnd]MgO and MgO[sbnd]V. Cross-sectional specimens were prepared from … V/MgO/V/MgO multilayers and the V[sbnd]MgO and MgO[sbnd]V interfaces were investigated from different ...
Y. Ikuhara +3 more
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Surface Diffusion in MgO and Cr‐Doped MgO
Journal of the American Ceramic Society, 1982The surface diffusion of MgO and Cr‐doped MgO was examined using grain‐boundary grooving. Measurements were taken at T=1100° to 1400°C for a concentration range of 0 to 0.442 at.% Cr. The activation energy for surface diffusion of MgO was found to be 239± kj/mol. The surface diffusivity did not change markedly with chromium concentration.
S.A. LYTLE, V.S. STUBICAN
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Preparation and properties of sputtered MgO/Au, MgO/Ag, and MgO/Ni cermet films
Journal of Applied Physics, 1974Finely grained films of three cermets-MgO/Au, MgO/Ag, and MgO/Ni-have been grown by rf sputtering from composite targets. Electron-microscopic studies show that MgO/Au and MgO/Ag films consist of small crystallites (usually <150 Å) of both MgO and Au or Ag. In MgO/Ni films, it appears that amorphous Ni particles are embedded in a polycrystalline
John C. C. Fan, Victor E. Henrich
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Calculated enthalpies of mixing of MnO/MgO and NiO/MgO
J. Mater. Chem., 1994Calculations are reported of the enthalpies of mixing of MnO/MgO and NiO/MgO based on temperature-dependent lattice statics and dynamics and ab initio periodic Hartree–Fock methodology with a posteriori corrections for electron correlation derived from density-functional theory. For MnO/MgO both methodologies predict enthalpies of mixing that are close
K. D. HEATH +3 more
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Unsaturated Nitriles: Stereoselective MgO Eliminations
The Journal of Organic Chemistry, 2002AbstractFor Abstract see ChemInform Abstract in Full Text.
Fraser F, Fleming, Brian C, Shook
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Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B, 2020
Density and molar volume of MgO–Al2O3–SiO2, MgO–CaO–SiO2 and MgO–CaO–Al2O3–SiO2 glasses have been correlated with the structure by following the change in type and concentration of structural units with composition. It is assumed that for (MgO+CaO)≥Al2O3 all Al atoms form AlO4 tetrahedra. The type of modified units of SiO2 (Q3 and Q2) are determined by
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Density and molar volume of MgO–Al2O3–SiO2, MgO–CaO–SiO2 and MgO–CaO–Al2O3–SiO2 glasses have been correlated with the structure by following the change in type and concentration of structural units with composition. It is assumed that for (MgO+CaO)≥Al2O3 all Al atoms form AlO4 tetrahedra. The type of modified units of SiO2 (Q3 and Q2) are determined by
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Journal of Applied Physics, 2012
MgO/NiFe/MgO trilayers, the new development in highly sensitive anisotropic magnetoresistance (AMR) sensor film materials, exhibit severely reduced magnetoresistance ratios at small NiFe thicknesses. By inserting ultrathin NiFe(І) layers into the top and bottom MgO layers of MgO/NiFe/MgO trilayers, films with a structure of MgO/NiFe(І)/MgO/NiFe/MgO ...
Jiashun Huangfu +4 more
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MgO/NiFe/MgO trilayers, the new development in highly sensitive anisotropic magnetoresistance (AMR) sensor film materials, exhibit severely reduced magnetoresistance ratios at small NiFe thicknesses. By inserting ultrathin NiFe(І) layers into the top and bottom MgO layers of MgO/NiFe/MgO trilayers, films with a structure of MgO/NiFe(І)/MgO/NiFe/MgO ...
Jiashun Huangfu +4 more
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Sintering high-purity fusions of MgO and MgO�Al2O3
Refractories, 1981The porosity and strength of specimens of fused MgO obtained by induction smelting in cold crucibles and having ≤1% impurities is significantly increased by the addition of 1% CeO2, 5% ZrO2, and 20% of the vibromilled component plus 5% Y2O3. An addition of 5% Y2O3 has the greatest effect on the sintering characteristics of the MgO·Al2O3 specimens.
T. F. Baranova +4 more
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Magnetic characterization of CoFeB∕MgO and CoFe∕MgO interfaces
Applied Physics Letters, 2007The use of CoFeB ferromagnetic electrodes in place of CoFe has been shown to significantly increase the tunneling magnetoresistance (TMR) of MgO based magnetic tunnel junctions (MTJs). By using soft x-ray scattering techniques, we show that the behavior of the magnetic moments located at the CoFe–MgO interface are drastically different from the rest of
Ezana Negusse +8 more
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