PMID- 19392455 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20090624 LR - 20090427 IS - 0031-9007 (Print) IS - 0031-9007 (Linking) VI - 102 IP - 14 DP - 2009 Apr 10 TI - Mixed barrier model for the mixed glass former effect in ion conducting glasses. PG - 145902 AB - Mixing two types of glass formers in ion conducting glasses can be exploited to lower conductivity activation energy and thereby increasing the ionic conductivity, a phenomenon known as the mixed glass former effect (MGFE). We develop a model for this MGFE, where activation barriers for individual ion jumps get lowered in inhomogeneous environments containing both types of network forming units. Fits of the model to experimental data allow one to estimate the strength of the barrier reduction, and they indicate a spatial clustering of the two types of network formers. The model predicts a time-temperature superposition of conductivity spectra onto a common master curve independent of the mixing ratio. FAU - Schuch, Michael AU - Schuch M AD - Institut fur Physik, Technische Universitat Ilmenau, 98684 Ilmenau, Germany. FAU - Muller, Christian R AU - Muller CR FAU - Maass, Philipp AU - Maass P FAU - Martin, Steve W AU - Martin SW LA - eng PT - Journal Article DEP - 20090408 PL - United States TA - Phys Rev Lett JT - Physical review letters JID - 0401141 EDAT- 2009/04/28 09:00 MHDA- 2009/04/28 09:01 CRDT- 2009/04/28 09:00 PHST- 2008/12/19 00:00 [received] PHST- 2009/04/28 09:00 [entrez] PHST- 2009/04/28 09:00 [pubmed] PHST- 2009/04/28 09:01 [medline] AID - 10.1103/PhysRevLett.102.145902 [doi] PST - ppublish SO - Phys Rev Lett. 2009 Apr 10;102(14):145902. doi: 10.1103/PhysRevLett.102.145902. Epub 2009 Apr 8.