Raman scattering by electron-hole excitations in silver nanocrystals

Abstract

Raman scattering experiments from silver nanocrystals embedded in films of amorphous silica are reported. In addition to the low-frequency peak due to vibrational quadrupolar modes, a broadband is observed in the high-frequency range, with a maximum at about 1000 $c{m}^{-1}$. The linear dependence of the position of this maximum on the inverse cluster radius is in agreement with the Raman scattering by single or collective electron-hole excitations.

7 pages, 3 figures. To be pub.in PRB

References in corpus (2)

• Orbital Magnetic Dipole Mode in Deformed Clusters: A Fully Microscopic Analysis
• Twist Mode in Spherical Alkali Metal Clusters

Cited by in corpus (8)

• Longitudinal versus transverse spheroidal vibrational modes of an elastic sphere
• Scissors Mode and dichroism in an anisotropic crystal
• Scissors modes in triaxial metal clusters
• Scissors modes in crystals with cubic symmetry
• Scissors Modes:The first overtone
• Infrared electron modes in light deformed clusters
• Scissors Modes: The elusive breathing overtone
• Orbital magnetism in axially deformed sodium clusters: From scissors mode to dia-para magnetic anisotropy