Thermal excitation signals in the inhomogeneous warm dense electron gas
Abstract We investigate the emergence of electronic excitations from the inhomogeneous electronic structure at warm dense matter parameters based on first-principles calculations. The emerging modes are controlled by the imposed perturbation amplitude. They include satellite signals around the stand...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-05034-z |
| _version_ | 1830382626610872320 |
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| author | Zhandos A. Moldabekov Tobias Dornheim Attila Cangi |
| author_facet | Zhandos A. Moldabekov Tobias Dornheim Attila Cangi |
| author_sort | Zhandos A. Moldabekov |
| collection | DOAJ |
| description | Abstract We investigate the emergence of electronic excitations from the inhomogeneous electronic structure at warm dense matter parameters based on first-principles calculations. The emerging modes are controlled by the imposed perturbation amplitude. They include satellite signals around the standard plasmon feature, transformation of plasmons to optical modes, and double-plasmon modes. These modes exhibit a pronounced dependence on the temperature. This makes them potentially invaluable for the diagnostics of plasma parameters in the warm dense matter regime. We demonstrate that these modes can be probed with present experimental techniques. |
| first_indexed | 2024-12-20T10:09:59Z |
| format | Article |
| id | doaj.art-37625454524b4c92a49652f74fc8370c |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-20T10:09:59Z |
| publishDate | 2022-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-37625454524b4c92a49652f74fc8370c2022-12-21T19:44:10ZengNature PortfolioScientific Reports2045-23222022-01-0112111010.1038/s41598-022-05034-zThermal excitation signals in the inhomogeneous warm dense electron gasZhandos A. Moldabekov0Tobias Dornheim1Attila Cangi2Center for Advanced Systems Understanding (CASUS)Center for Advanced Systems Understanding (CASUS)Center for Advanced Systems Understanding (CASUS)Abstract We investigate the emergence of electronic excitations from the inhomogeneous electronic structure at warm dense matter parameters based on first-principles calculations. The emerging modes are controlled by the imposed perturbation amplitude. They include satellite signals around the standard plasmon feature, transformation of plasmons to optical modes, and double-plasmon modes. These modes exhibit a pronounced dependence on the temperature. This makes them potentially invaluable for the diagnostics of plasma parameters in the warm dense matter regime. We demonstrate that these modes can be probed with present experimental techniques.https://doi.org/10.1038/s41598-022-05034-z |
| spellingShingle | Zhandos A. Moldabekov Tobias Dornheim Attila Cangi Thermal excitation signals in the inhomogeneous warm dense electron gas Scientific Reports |
| title | Thermal excitation signals in the inhomogeneous warm dense electron gas |
| title_full | Thermal excitation signals in the inhomogeneous warm dense electron gas |
| title_fullStr | Thermal excitation signals in the inhomogeneous warm dense electron gas |
| title_full_unstemmed | Thermal excitation signals in the inhomogeneous warm dense electron gas |
| title_short | Thermal excitation signals in the inhomogeneous warm dense electron gas |
| title_sort | thermal excitation signals in the inhomogeneous warm dense electron gas |
| url | https://doi.org/10.1038/s41598-022-05034-z |
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