Über die Streuung von Strahlung durch Atome

Kramers, H. A.; Heisenberg, W.

doi:10.1007/bf02980624

Cited by 745 publications

(331 citation statements)

References 8 publications

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“…The simulations are carried out with the crystal field multiplet approach developed by Thole et. al 18,19 14,20,21 and the corresponding matrices involved are the 3d N to 2p 5 3d N+1 dipole transition coupled to the (identical) 2p 5 3d N+1 to 3d N dipole decay matrices. The scattering intensity F is given as a function of incident (Ω) and emitted x-ray energy (ω) is given as: …”

Section: Experiments and Theory A Computational Detailsmentioning

confidence: 99%

Intrinsic deviations in fluorescence yield detected x-ray absorption spectroscopy: the case of the transition metal L_2,3edges

Kurian

Kunnus

Wernet

et al. 2012

J. Phys.: Condens. Matter

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Fluorescence yield (FY) detected x-ray absorption spectrum spectra (XAS) of 3d transition metal ions are calculated from the integrated 2p3d resonant x-ray emission spectrum. The resulting FY-XAS spectra are compared with the normal XAS spectra corresponding to the absorption cross section and significant deviations between both spectra are found. This implies that the assumption that the FY-XAS spectrum identifies with the XAS spectrum is disproved. Especially for the early transition metal systems the differences between FY-XAS and XAS are large, due to the opening of inelastic decay channels from selected x-ray absorption final states. The theoretical calculations show that the difference between FY detection and XAS is largest for the detection in depolarized geometry. The calculations are compared with experimental spectra for oxides and coordination compounds for Fe 2+ , Co 2+ and Ni 2+ systems. The implications for the sum rules in XAS and magnetic circular dichroism experiments are discussed.

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Section: Experiments and Theory A Computational Detailsmentioning

confidence: 99%

Intrinsic deviations in fluorescence yield detected x-ray absorption spectroscopy: the case of the transition metal L_2,3edges

Kurian

Kunnus

Wernet

et al. 2012

J. Phys.: Condens. Matter

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“…21 The Slater integrals, describing 4 f -4 f , 4f -3d, and 4 f -4d Coulomb and exchange interactions, and spinorbit constants were obtained by the Hartree-Fock method with relativistic corrections. 22 The reduction ratios of the Slater integrals were…”

Section: Calculational Detailsmentioning

confidence: 99%

Electronic-structure investigation ofCeB6by means of soft-x-ray scattering

Magnuson¹,

Butorin²,

Guo³

et al. 2001

Phys. Rev. B

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The electronic structure of the heavy fermion compound CeB 6 is probed by resonant inelastic soft-x-ray scattering using photon energies across the Ce 3d and 4d absorption edges. The hybridization between the localized 4 f orbitals and the delocalized valence-band states is studied by identifying the different spectral contributions from inelastic Raman scattering and normal fluorescence. Pronounced energy-loss structures are observed below the elastic peak at both the 3d and 4d thresholds. The origin and character of the inelastic scattering structures are discussed in terms of charge-transfer excitations in connection to the dipole allowed transitions with 4 f character. Calculations within the single-impurity Anderson model with full multiplet effects are found to yield consistent spectral functions to the experimental data.

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“…For frequencies ω close to the energy gap of the nano-objects, the size of the object is small as compared to the wavelength and the dipole approximation can be used. Therefore it is possible to use the Kramers-Heisenberg expression [15,16] for the polarizability tensor: …”

Section: Theory and Resultsmentioning

confidence: 99%

Magneto-optics of layers of semiconductor quantum dots and nano-rings

Voskoboynikov¹,

Wijers²,

Liu³

et al. 2006

Braz. J. Phys.

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We have studied the collective magneto-optical response of layers of semiconductor quantum dots and nanorings. Expressions for both the polarizability of the individual nano-objects have been used to determine the magneto-optical response on square two-dimensional lattices on those nano-objects as a function on frequency, magnetic field and angle of incidence. The magnetic field dependence of the response for layers of rings gives rise to the Aharonov-Bohm type oscillatory behavior in the reflectance and absorbance that can be measurable. Layers of dots do not display any remarkable magnetic field dependence.

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Über die Streuung von Strahlung durch Atome

Cited by 745 publications

References 8 publications

Intrinsic deviations in fluorescence yield detected x-ray absorption spectroscopy: the case of the transition metal L_2,3edges

Intrinsic deviations in fluorescence yield detected x-ray absorption spectroscopy: the case of the transition metal L_2,3edges

Electronic-structure investigation ofCeB6by means of soft-x-ray scattering

Magneto-optics of layers of semiconductor quantum dots and nano-rings

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Über die Streuung von Strahlung durch Atome

Cited by 745 publications

References 8 publications

Intrinsic deviations in fluorescence yield detected x-ray absorption spectroscopy: the case of the transition metal L2,3edges

Intrinsic deviations in fluorescence yield detected x-ray absorption spectroscopy: the case of the transition metal L2,3edges

Electronic-structure investigation ofCeB6by means of soft-x-ray scattering

Magneto-optics of layers of semiconductor quantum dots and nano-rings

Contact Info

Product

Resources

About

Intrinsic deviations in fluorescence yield detected x-ray absorption spectroscopy: the case of the transition metal L_2,3edges

Intrinsic deviations in fluorescence yield detected x-ray absorption spectroscopy: the case of the transition metal L_2,3edges