Abstract
The electron energy loss in a dispersive medium is obtained using macroscopic electrodynamics taking advantage of a static frame of reference. Relativistic corrections are described in terms of a dispersive Lorentz factor obtained by replacing the vacuum velocity c by the characteristic phase velocity c/n, where n is the complex index of refraction. The angle-resolved energy-loss spectrum of a Drude conductor is analyzed in detail and it is shown that the low-energy peak due to Ohmic losses is enhanced compared to the classical approximation.
| Original language | English |
|---|---|
| Journal | Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) |
| Volume | 66 |
| Pages (from-to) | 022901-022906 |
| ISSN | 1539-3755 |
| Publication status | Published - 2002 |