New interpretation of activation enthalpies for electrical conductivity and nuclear spin relaxation in glassy ionic conductors

Autor:	Otmar Kanert, K. L. Ngai, Himanshu Jain, G. Balzer-Jöllenbeck
Rok vydání:	1989
Předmět:	Materials science Nuclear magnetic resonance Ionic conductivity Relaxation (physics) Ionic bonding Thermodynamics Germanate Activation energy Conductivity Coupling (probability) Ion
Zdroj:	Physical Review B. 39:6071-6075
ISSN:	0163-1829
DOI:	10.1103/physrevb.39.6071
Popis:	Experimental data of nuclear spin relaxation by two-level systems in alkali silicate, borate, and germanate glasses from 3\ensuremath{\le}T\ensuremath{\le}700 K can be described in terms of a microscopic energy barrier impeding ion motion which is significantly different from the activation energy of ionic conductivity. This description can be understood in terms of the coupling model of conductivity relaxation in glassy ionic conductors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f111436bb3dd5fe93ab8339b657dcbf1 https://doi.org/10.1103/physrevb.39.6071 Zobrazit plný text záznamu