Mixed mobile ion effect and cooperative motions in silver-sodium phosphate glasses
Artikel i vetenskaplig tidskrift, 2008

The conduction pathways and the extraordinary weak mixed mobile ion effect (MMIE) in AgxNa1-xPO3 glasses have been investigated by bond-valence analysis of reverse Monte Carlo produced structural models. We find that the MMIE is suppressed in this system due to a common cooperative hopping process, where both Ag and Na participate. This finding is in strong contrast to glass systems exhibiting a pronounced MMIE, where the two types of mobile ions have distinctly different conduction pathways and the M ions tend to block the pathways for the N ions and vice versa. © 2008 The American Physical Society.

Författare

Andreas Hall

Chalmers, Teknisk fysik, Kondenserade materiens fysik

Jan Swenson

Chalmers, Teknisk fysik, Kondenserade materiens fysik

St. Adams

National University of Singapore

C. Meneghini

Universita degli Studi Roma Tre

European Synchrotron Radiation Facility

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 101 195901-

Ämneskategorier

Annan materialteknik

Den kondenserade materiens fysik

DOI

10.1103/PhysRevLett.101.195901