K. Wakamura, EFFECTS OF ELECTRONIC BAND ON ACTIVATION-ENERGY AND OF EFFECTIVE CHARGE ON LATTICE DISTORTION IN SUPERIONIC CONDUCTORS, Journal of physics and chemistry of solids, 59(5), 1998, pp. 591-598
A strong contribution of the electronic energy state near the band gap
on superionic conduction is suggested by showing an empirical relatio
nship between the optical dielectric constant and the activation energ
y, E-ac. The transverse effective charge is connected with the transit
ion temperature and E-ac value. On the basis of this charge and the cr
ystal symmetry, we can understand the structural phase transition in s
uperionic conductors and the non-structural transition in high ionic c
onductors AgX (X = F, Cl and Br) and CuF. (C) 1998 Elsevier Science Lt
d. All rights reserved.