Comparative Study of the Valence Electronic Excitations of N2 by Inelastic X-Ray and Electron Scattering

被引：45

作者：

Bradley, J. A. ^{[1
,2
]}

Seidler, G. T. ^{[1
]}

Cooper, G. ^{[3
]}

Vos, M. ^{[4
]}

Hitchcock, A. P. ^{[3
]}

Sorini, A. P. ^{[1
,5
]}

Schlimmer, C. ^{[1
]}

Nagle, K. P. ^{[1
]}

机构：

[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[3] McMaster Univ, Brockhouse Inst Mat Res, Hamilton, ON L8S 4M1, Canada

[4] Australian Natl Univ, Atom & Mol Phys Labs, Res Sch Phys & Engn, Canberra, ACT 0200, Australia

[5] Stanford Inst Mat & Energy Sci, SLAC Natl Lab, Menlo Pk, CA 94025 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 05期

基金：

澳大利亚研究理事会; 加拿大自然科学与工程研究理事会;

关键词：

GENERALIZED OSCILLATOR-STRENGTHS; DIFFERENTIAL CROSS-SECTIONS; HIGH-ENERGY APPROXIMATION; INNER-SHELL EXCITATION; FAST CHARGED-PARTICLES; IMPACT SPECTROSCOPY; ELASTIC-SCATTERING; MOLECULES; COLLISIONS; HELIUM;

D O I：

10.1103/PhysRevLett.105.053202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Bound-state, valence electronic excitation spectra of N-2 are probed by nonresonant inelastic x-ray and electron scattering. Within usual theoretical treatments, dynamical structure factors derived from the two probes should be identical. However, we find strong disagreements outside the dipole scattering limit, even at high probe energies. This suggests an unexpectedly important contribution from intramolecular multiple scattering of the probe electron from core electrons or the nucleus. These effects should grow progressively stronger as the atomic number of the target species increases.

引用

页数：4

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