نتایج جستجو برای: x ray diffraction ordering
تعداد نتایج: 719244 فیلتر نتایج به سال:
This work presents a structural investigation of La2-xNdxCe2O7 (x = 0.0, 0.5, 1.0, 1.5, 2.0) using X-ray powder diffraction and total scattering neutron powder diffraction, analysed using Rietveld and the reverse Monte Carlo method (RMC). Ab initio molecular dynamics (MD) modelling is also performed for further investigations of the local order. The main intensities in the neutron diffraction d...
New insight into the superconducting properties of HgBa2CuO4 (Hg-1201) cuprates is provided by combined measurements electrical resistivity and single crystal X-ray diffraction under pressure. The changes induced increasing pressure up to 20 GPa in optimally doped crystals were investigated. as a function temperature show metallic behavior ~10 that gradually passes an insulating state, typical ...
A new hydrated sodium nickel fluoride with nominal composition NaNiF3·3H2O was synthesized using an aqueous solution route. Its structure was solved by means of ab initio methods from powder X-ray diffraction and neutron diffraction data. NaNiF3·3H2O crystallizes in the cubic crystal system, space group Pn3̅ with a = 7.91968(4) Å. The framework, derived from the ReO3 structure type, is built fro...
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