Figure 4
Variation of Ueq (×103) with temperature for β-NTO. Ueq = a + bT + cT2, where a × 103, b × 103, c × 107 are: 1.90, 0.09, −0.16 (N1); 5.68, 0.04, 1.35 (N2); 7.00, 0.02, 1.54 (C3); 3.22, 0.05, 0.68 (N4); 6.05, 0.03, 0.96 (C5); 5.75, 0.05, 1.28 (N5); 2.11, 0.11, −0.16 (O3); 4.39, 0.12, 1.38 (O5a); 4.69, 0.10, 1.05 (O5b). |