| ε11 83.3, ε33 28.5 default record | relative (eps/eps0) | Congruent LiNbO3 (CLN) SAW-grade congruent; composition not stated in the source | f low frequency (below acoustic resonances); mech. free (T); method measured | crystal-physics; x: a axis, perpendicular to a mirror plane; z: polar c axis; sign convention unstated; +z: not stated in this record; tensor form matches this frame by symmetry | Kushibiki et al., IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 46 1315 (1999) | Table IV | P |
| ε11 85, ε33 28.7 | relative (eps/eps0) | Congruent LiNbO3 (CLN) | f < 500 kHz; mech. free (T) | crystal-physics; x: a axis, perpendicular to a mirror plane; z: polar c axis; sign convention unstated; +z: not stated in this record; tensor form matches this frame by symmetry | Crystal Technology, Inc. (1999) | – | V |
| ε11 84, ε33 30 | relative (eps/eps0) | Congruent LiNbO3 (CLN) | mech. free (T) | crystal-physics; x: a axis, perpendicular to a mirror plane; z: polar c axis; sign convention unstated; +z: not stated in this record; tensor form matches this frame by symmetry | Volk & Wöhlecke, Springer Series in Materials Science 115 (2009) original: Tomeno & Matsumura, PRB 38, 606 (1988) | Table 1.1, p. 3 | P-comp |
| Identical to the Savage 1966 set. |
| ε11 84, ε33 30 | relative (eps/eps0) | Composition not stated | mech. free (T) | crystal-physics; x: a axis, perpendicular to a mirror plane; z: polar c axis; convention IRE-1949; +z: +c points out of the face that becomes negative on compression; equivalently it becomes positive on cooling (Weis & Gaylord 1985 pp. 192-193) | Weis & Gaylord, Applied Physics A 37 191-203 (1985) original: Savage, J. Appl. Phys. 37, 3071 (1966) | Table 1, p. 197 | P-comp |
| ε11 84.6, ε33 28.6 | relative (eps/eps0) | Composition not stated | mech. free (T) | crystal-physics; x: a axis, perpendicular to a mirror plane; z: polar c axis; convention IRE-1949; +z: +c points out of the face that becomes negative on compression; equivalently it becomes positive on cooling (Weis & Gaylord 1985 pp. 192-193) | Weis & Gaylord, Applied Physics A 37 191-203 (1985) original: Smith & Welsh, J. Appl. Phys. 42, 2219 (1971) | Table 1, p. 197 | P-comp |
| Weis & Gaylord 1985 lists no S values for Smith & Welsh; Ogi et al. 2002 attributes 44.3 / 27.9 to them (attribution mismatch). |
| ε11 84.1, ε33 28.1 | relative (eps/eps0) | Composition not stated | mech. free (T) | crystal-physics; x: a axis, perpendicular to a mirror plane; z: polar c axis; convention IRE-1949; +z: +c points out of the face that becomes negative on compression; equivalently it becomes positive on cooling (Weis & Gaylord 1985 pp. 192-193) | Weis & Gaylord, Applied Physics A 37 191-203 (1985) original: Teague, Rice, Gerson, J. Appl. Phys. 46, 2864 (1975) | Table 1, p. 197 | P-comp |
| ε11 85.2, ε33 28.7 | relative (eps/eps0) | Composition not stated | mech. free (T) | crystal-physics; x: a axis, perpendicular to a mirror plane; z: polar c axis; convention IRE-1949; +z: +c points out of the face that becomes negative on compression; equivalently it becomes positive on cooling (Weis & Gaylord 1985 pp. 192-193) | Weis & Gaylord, Applied Physics A 37 191-203 (1985) original: Warner, Onoe, Coquin, JASA 42, 1223 (1967) | Table 1, p. 197 | P-comp |