Substitution Effect in the Ion Conductor Li3InBr6, Studied by Nuclear Magnetic Resonance

Abstract

Li3_2x;MgxInBr6 (x = 0.02 - 0.4) was synthesized, and the cation substitution effect on the conductivity was investigated by means of 7Li and 115In NMR, and X-ray diffraction. With increasing x the lattice constants a and c increased, but b and β did not show significant changes. The conductivity of the low temperature phase increased with x, associated with a narrowing of the 7Li NMR spectra. In the high temperature superionic phase, on the other hand, the conductivity decreased with x accompanied by a broadening of the115In NMR spectra. © 2014, Verlag der Zeitschrift für Naturforschung. All rights reserved.