Stoichiometric or near-stoichiometric LiNbO3 (SLN)near-stoichiometric
P-comp38pm/V
mech. free (T); λ 633 nm; default record
Partial set (r22 absent), so stored as scalars rather than a tensor.
Volk & Wöhlecke, Springer Series in Materials Science 115 (2009), Table 1.2, p. 4original: Nikogosyan 2005