Core polarization and the dielectric response of simple metals

Sturm, K.; Zaremba, E.; Nuroh, K.

doi:10.1103/physrevb.42.6973

Cited by 54 publications

(32 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The figure shows reasonable agreement between the present model and experimental data (e.g. ; earlier comparisons show larger discrepancies [1,19]). …”

Section: Cold Aluminumsupporting

confidence: 76%

“…At higher photon energies, however, the dynamic response of the core can become important. [19] That is, the assumed core potential is adequate to describe electron scattering from Al +3 at large impact parameters, but it is only approximate for the core penetrating collisions required for absorption at photon energies approaching the ionization of the L-shell electrons.…”

Section: Frozen-core Potentialmentioning

confidence: 99%

See 1 more Smart Citation

XUV absorption by solid-density aluminum

Iglesias

2010

High Energy Density Physics

View full text Add to dashboard Cite

An inverse bremsstrahlung model for plasmas and simple metals that approximates the cold, solid Al experimental data below the L-edge is applied to matter conditions relevant to XUV laser applications. The model involves an all-order calculation using a semi-analytical effective electron-ion interaction. The predicted increases in XUV absorption with rising temperature occur via two effects: increased availability of final states from reduced electron degeneracy and a stronger electron-ion interaction from reduced screening. Discrepancies in the temperature dependence as well as other details between the present approach and a recently proposed absorption model are discussed.

show abstract

“…The figure shows reasonable agreement between the present model and experimental data (e.g. ; earlier comparisons show larger discrepancies [1,19]). …”

Section: Cold Aluminumsupporting

confidence: 76%

Section: Frozen-core Potentialmentioning

confidence: 99%

XUV absorption by solid-density aluminum

Iglesias

2010

High Energy Density Physics

View full text Add to dashboard Cite

show abstract

“…1 was simply to provide a polarizable background which lowered p by ϳ0.5 eV. 23 However, the collective response of Cs bears a more fundamental imprint of the presence of the polarizable core, a consequence of the dual enhancement of many-body correlations and crystal local fields to which it gives rise.…”

mentioning

confidence: 99%

One-electron excitations, correlation effects, and the plasmon in cesium metal

1997

View full text Add to dashboard Cite

We study the dynamical electronic response of Cs at a first-principles level. The spatially localized 5p semicore shell induces a physical interplay between crystal local fields and electron correlations, leading to a novel, and relatively large, many-body shift of the plasmon energy. This effect, combined with that of oneelectron transitions into empty states near the plasmon energy, yields a plasmon dispersion curve which is in excellent agreement with experiment for small wave vectors. In addition, our results feature a flat dispersion for large wave vectors, in qualitative agreement with experiment. ͓S0163-1829͑97͒07504-8͔

show abstract

“…The dielectric function of In is approximated using the Drude model and the material parameters of In are taken from Refs. [23,24]. Although indium deviates from the free electron model, its application permits us to take into account the variation of the damping constant with temperature, which is important for the extremely low temperatures used in our TDOA measurements.…”

Section: Optical Absorption and Mie Resonancesmentioning

confidence: 99%