Issue |
EPL
Volume 100, Number 6, December 2012
|
|
---|---|---|
Article Number | 66003 | |
Number of page(s) | 6 | |
Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
DOI | https://doi.org/10.1209/0295-5075/100/66003 | |
Published online | 03 January 2013 |
Correlation of microscopic length scales of ion dynamics with network structure in lithium-iodide–doped lithium metaphosphate glasses
Department of Solid State Physics, Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032, India
Received: 10 September 2012
Accepted: 26 November 2012
In this paper we have studied the correlation of microscopic length scales of ion dynamics with the network structure in lithium-iodide–doped lithium metaphosphate glasses. We have obtained microscopic length scales for ion dynamics, such as the characteristic mean square displacement and the spatial extent of sub-diffusive motion of the lithium ions. We have observed that the lithium ions have to travel a smaller distance to overcome the nearest percolation barriers in order to perform long-range diffusion. The phosphate chain lengths shorten with the addition of lithium iodide to metaphosphate glasses. We have also studied the network structure of these glasses, and a correlation between the length scales of ion dynamics and the network structure has been obtained.
PACS: 61.43.Fs – Glasses / 77.22.Gm – Dielectric loss and relaxation
© EPLA, 2012
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