Evidence for an instability near twice the fermi wave vector in the low electronic density liquid metal Li(NH3)4 |
| |
| Authors: | Burns C A Platzman P M Sinn H Alatas A Alp E E |
| |
| Institution: | Department of Physics, Western Michigan University, Kalamazoo 49008, USA. |
| |
| Abstract: | We report high-resolution inelastic x-ray scattering measurements in the metallic liquid Li(NH3)4, which to a good approximation can be treated as a dilute alkali metal. We see a well-defined excitation out to large momentum transfers. This excitation shows a strong softening at wave vectors near the first peak in the structure factor, which occurs near twice the Fermi momentum. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
