We report on high-resolution electron-energy-loss measurements of surface-plasmon losses on Ag(001) performed for crystal temperatures T in the range 100-400 K. Both the surface-plasmon frequency and linewidth are found to depend on T. The surface-plasmon frequency decreases with increasing T, nearly independently of wave vector; the linewidth increases by 7 x 10(-5) eV/K. The shift in energy is explained by the thermal expansion of the crystal, while the linewidth is influenced by the surface-plasmon-phonon interaction.
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Titolo: | Temperature Dependence of Surface Plasmon on Ag(001) |
Autori: | |
Data di pubblicazione: | 1992 |
Rivista: | |
Abstract: | We report on high-resolution electron-energy-loss measurements of surface-plasmon losses on Ag(001) performed for crystal temperatures T in the range 100-400 K. Both the surface-plasmon frequency and linewidth are found to depend on T. The surface-plasmon frequency decreases with increasing T, nearly independently of wave vector; the linewidth increases by 7 x 10(-5) eV/K. The shift in energy is explained by the thermal expansion of the crystal, while the linewidth is influenced by the surface-plasmon-phonon interaction. |
Handle: | http://hdl.handle.net/11567/388427 |
Appare nelle tipologie: | 01.01 - Articolo su rivista |
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