Table 2. Comparison of Room-Temperature Lattice Parameter a and High-Temperature Thermal Expansion Coefficient aL (for the Temperature Range 300 ≤ T/K ≤ 2500) with Values from Other Computational (Comp.) and Experimental (Expt.) Studiesa.
a/Å | aL/10–6 K–1 | expt./comp. | references |
---|---|---|---|
10.830 | 10.53 | comp., MBP | rhis study |
10.7997 | 9.0 | expt. | (78) |
10.8128 | 10.3 | expt. | (54) |
10.794 | 7.0 | expt. | (79) |
10.812 | 7.76 | expt. | (80) |
10.828 | 6.96 | comp., EPP | (81) |
The value of ref (81) was converted to a room-temperature lattice parameter. (MBP, many-body potentials; EPP, empirical pair potentials).