Theory for the 2p-shell sxaps for the 3d-transition metals

Nuroh, K.; Wendin, Göran

doi:10.1016/0038-1098(79)90258-8

Cited by 5 publications

(4 citation statements)

References 6 publications

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“…This model is certainly not applicable in the case of strongly localized levels (like, e.g., the 4f levels in lanthanum [21]) in which case the two peak structures still appear (see [21] and the references therein), but their relative position is significantly disturbed by the electron-electron and electron-hole interactions. Since the 3d-levels in vanadium are not sharply localized, a convolution approach might work in a qualitative way [22]. We, therefore, expected our APS spectrum of W O 4 to display qualitatively the above pattern, with the first structure situated at the bunch of first unoccupied levels (2e, 4t2).…”

Section: Comparison Of the Experimental X-ray Emission Andmentioning

confidence: 96%

Towards the Understanding of the Electronic Structure of the VO₄^3-Ion

Curelaru¹,

Wendin²

1980

Phys. Scr.

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The experimental X-ray K-emission and absorption spectra of Na,VO, , the L-emission spectrum of YVO,, and the XPS and APS spectra of YVO, are compared with the energy diagram of molecular orbitals obtained by a cluster-model calculation for the orthovanadate ion VO:-.It is found that the gross features of all the spectroscopies can be understood if core hole relaxation and localization of the screening charge is properly taken into account, admitting, e.g., excitonic effects in excitation spectra. Presence of a core hole leads to local breakdown of the one-particle orbital model for the solid, and the excitation and decay processes should more appropriately be described by transitions between atomic-like configurations. Usefulness of several other, complementary spectroscopic studies is anticipated. Refinement of the interpretation is expected to come from both an improvement of the cluster calculations and the inclusion of the admittedly non-negligible environmental effects such as the crystal-field effects, the cation contribution in specific compounds, etc. A few experimental aspects with possible implications on the interpretation of data are commented.

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Section: Comparison Of the Experimental X-ray Emission Andmentioning

confidence: 96%

Towards the Understanding of the Electronic Structure of the VO₄^3-Ion

Curelaru¹,

Wendin²

1980

Phys. Scr.

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“…For an order of magnitude estimate we only include the last term of eq. (3.6) and obtain [8] The constant C is solely angular momenta-dependent and is of the order 1/2. This suggests that the bremsstrahlung and characteristic SXE will be of comparable importance provided the core level width is comparable to the width of the occupied part of the (model) band.…”

Section: Y"ps(ementioning

confidence: 99%

“…7. This means that one considers only characteristic (filled valence band) SXE pro2esst.s and the eniission intensit) is given by [8] Zc(L, w ) -p<(fCi + a )…”

Section: Theory Of Resonant Bremsstrahlung Resonance Fluorescencementioning

confidence: 99%