Vibrational, reorientational and translational ionic motion in glass

C. Cramer, K. Funke, C. Vortkamp-Rückert and A.J. Dianoux

Physica A: Statistical Mechanics and its Applications, 1992, vol. 191, issue 1, 358-364

Abstract: The techniques of inelastic neutron scattering and high-frequency conductivity measurement have been employed to analyze the ion dynamics in the lithium-ion conducting glass B2O3·0.56Li2O·0.45LiBr at various temperatures. The neutron scattering data are interpreted by superposition of four contributions corresponding to damped oscillations of four different ionic units. Frequency dependent ionic conductivities have been measured from 1 kHz up to GHz. At first sight, the conductivity spectra σ(ω) seem to conform with a ω1.0 power law valid in wide frequency ranges. However, close inspection shows that two surprisingly well defined processes are superimposed, featuring different activation energies and different power-law exponents. The latter are 0.67 and 1.30. The two processes are identified with translational jump diffusion (including jump relaxation) and a non-Debye localized reorientational motion of the ions within a given neighbourhood.

Date: 1992
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/0378437192905522
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:191:y:1992:i:1:p:358-364

DOI: 10.1016/0378-4371(92)90552-2

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().