Investigation of inelastic light scattering in heavily electron-irradiated alkali halides

The properties of several unusual Raman scattering peaks observed in heavily irradiated NaCl with vast amounts of colloidal sodium are investigated. A new peak (at 3580 cm-1) has been observed far beyond the cut-off limit of the one-phonon spectrum. This scattering phenomenon has been explained with an electron quantum confinement model where the electronic excitations are quantized as expected for wire-like structures of nano-particles of metallic sodium.

Raman scattering and quantum confinement in heavily electron-irradiated alkali halides

In this paper we will study the properties of several unusual Raman scattering peaks in heavily irradiated NaCl with vast amounts of colloidal sodium and chlorine precipitates. It appears that the laser excitation light interacts with both the electronic and vibration systems of the Na colloids, which gives rise to new Raman scattering peaks, which can be associated with electronic and vibrational excitations confined in extremely thin (about 6 nm) quantum wires.