This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.95.157401 in citations.
Please use the identifier: http://hdl.handle.net/2128/1429 in citations.
Correlation-Induced Double-Plasmon Excitation in Simple Metals Studied by Inelastic X-Ray Scattering
Correlation-Induced Double-Plasmon Excitation in Simple Metals Studied by Inelastic X-Ray Scattering
We report a new type of peaklike structure observed in the tail of the dynamic structure factor of simple metals, measured by inelastic x-ray scattering. Based on the momentum-transfer dependence of the energy position and the intensity of this structure, it has been unambiguously attributed to intr...
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Personal Name(s): | Sternemann, C. |
---|---|
Huotari, S. / Vanko, G. / Volmer, M. / Monaco, G. / Gusarov, A. / Lustfeld, H. / Sturm, K. / Schuelke, W. | |
Contributing Institute: |
Theorie I; IFF-TH-I |
Published in: | Physical review letters, 95 (2005) S. 157401 |
Imprint: |
College Park, Md.
APS
2005
|
Physical Description: |
157401 |
DOI: |
10.1103/PhysRevLett.95.157401 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Physical Review Letters
95 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/1429 in citations.
We report a new type of peaklike structure observed in the tail of the dynamic structure factor of simple metals, measured by inelastic x-ray scattering. Based on the momentum-transfer dependence of the energy position and the intensity of this structure, it has been unambiguously attributed to intrinsic plasmon-plasmon excitations, an electronic correlation effect that was theoretically predicted by many-body perturbation theory of the homogeneous-electron-gas model beyond the random-phase approximation. This signature appears to be largely unaffected by electron-ion interaction effects. Thus a structure that is primarily caused by correlation effects in the electron gas has been found experimentally in the dynamic structure factor of simple metals. |