Table 14:
Potassium bromide single crystal, Ref. [
20
], as cleaved 31.3 g/mm2 static stress.
Isotope/Element
v
(Hz)
v
c
(Hz)
q
S
(µm)
Na
1250
1292
1
1.32
Br
1500
1486
2
1.29
K
2950
3038
2
1.32
37
Cl
3275
3213
2
1.28
35
Cl
3440
3397
2
1.29
Al
4500
4402
2
1.28