Collective dynamics of charge fluctuations in ionic conductors

✍ Scribed by P.V. Giaquinta; M. Parrinello; M.P. Tosi

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 652 KB
• Volume: 92
• Category: Article
• ISSN: 0378-4371
• DOI: 10.1016/0378-4371(78)90027-4

✦ Synopsis

The generalized hydrodynamic structure of the charge-charge response function has been derived for two-component ionic conductors.

The effects of resistive processes and of couplings to mass and heat fluctuations have been singled out. The limiting case of a symmetric molten salt and the long wavelength limit have been examined in some detail. The charge-charge spectral function at k = 0 has been extracted from infra-red reflectivity data for molten LiF and shows a prominent peak due to optic-like collective excitations.