Lithium diffusion in congruent LiNbO3 single crystals at low temperatures probed by neutron reflectometry.


The self-diffusion of lithium in congruent LiNbO3 single crystals was investigated at low temperatures between 379 and 523 K by neutron reflectometry. From measurements on (6)LiNbO3 (amorphous film)/(nat)LiNbO3 (single crystal) samples, Li self-diffusivities were determined in single crystals down to extremely low values of 1 × 10(-25) m(2) s(-1) on small… (More)
DOI: 10.1039/c3cp54939a

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