Structure and dynamics of solid electrolyte (LiI)(LiPO)

Kartini, E.*; Nakamura, Mitsutaka; Arai, Masatoshi; Inamura, Yasuhiro; Nakajima, Kenji; Maksum, T.*; Hoggowiranto, W.*; Putra, T. Y. S. P.*

Solid State Ionics, 262, p.833 - 836, 2014/09

https://doi.org/10.1016/j.ssi.2013.12.041

We present the neutron scattering study of superionic glass (LiI)(LiPO) by using the inelastic neutron spectrometer AMATERAS at J-PARC. From the inelastic scattering, low energy excitation or the Boson Peak appears at 6.5 meV. The extra quasielastic scattering was observed in the energy range 1 meV E 3 meV at 285 K but not at 20 K. The Q dependence of the dynamical structure factor S(Q,E) can be approximated to the long-wave acoustic like density fluctuation.