کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9801906 1515734 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Intra- versus inter-site electronic excitations in NdNiO3 by resonant inelastic ultra-soft X-ray scattering at Ni 3p edge
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Intra- versus inter-site electronic excitations in NdNiO3 by resonant inelastic ultra-soft X-ray scattering at Ni 3p edge
چکیده انگلیسی
Resonant ultra-soft X-ray scattering measurements performed on NiO, as a model system, and NdNiO3 reveal the presence of pronounced inelastic structures within a few eV below the elastic peak in both cases. A comparison of experimental data with the results of Anderson impurity model calculations indicates that for both oxides the inelastic part of recorded spectra mainly originates from the intra-atomic d-d excitations. Remarkably, no distinct signal from inter-site d-d transitions can be identified for both metallic and insulating NdNiO3 at small energy-losses. The lack of significant spectral contribution from the latter transitions in this compound indicates that states on the top (bottom) of the valence (conduction) band have predominantly O 2p character and the NdNiO3 insulator is rather of a p-p type.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 135, Issues 11–12, September 2005, Pages 716-720
نویسندگان
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