Abstract
Li diffusive behavior in garnet-type oxides has been investigated by quasi-elastic neutron scattering (QENS) and muon-spin relaxation (μSR) measurements. The QENS signal increased with temperature (T) above 300 K due to Li+ motion. The activation energy obtained from the relationship between the QENS intensities and T−1 was lower about a half of that estimated by electrochemical measurements. By combining QENS and μSR results, we found that a diffusion coefficient of Li+ strongly depends on the number of mobile Li+.
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