Instability of the Electron Gas in an Expanding Metal
Physical Review Letters 98 巻
096401-1-096401-4 頁
2007 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Instability of the Electron Gas in an Expanding Metal
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| 作成者 |
Matsuda Kazuhiro
Tamura Kozaburo
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| 収録物名 |
Physical Review Letters
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| 巻 | 98 |
| 開始ページ | 096401-1 |
| 終了ページ | 096401-4 |
| 抄録 |
We have measured x-ray diffraction and small-angle x-ray scattering of fluid rubidium by reducing electron density down to the range where the compressibility of the interacting electron gas has been theoretically predicted to become negative. Negative compressibility is closely associated with a negative value of the static dielectric function, which makes the screened Coulomb interaction among like charges overall attractive. It was clearly observed that the interatomic distance decreases in spite of the fact that mean interatomic distance increases with expansion, suggesting that an attractive interaction among like charges, ions in this case, is enhanced. These findings indicate that the observed structural features are evidence of the compressional instability of the 3D electron gas.
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 2007 |
| 権利情報 |
Copyright (c) 2007 The American Physical Society
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.98.096401
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.98.096401
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