7 Application of Mössbauer Spectroscopy to Li-Ion and Na-Ion …
353
Table 7.1
Values of the 119
Sn Mössbauer parameters of Li
x Sn crystalline references obtained at room temperature by Dunlap et al. [97] and by Robert et al.
[98]. The values of the isomer shift,
δ, relative to BaSnO
3 and the quadrupole splitting,
, are given for the different Sn crystallographic sites
βSn
Li
2 Sn
5
LiSn
Li
7 Sn
3
Li
5 Sn
2
Li
13 Sn
5
Li
7 Sn
2
Li
22 Sn
5
δ/(mm/s)
(crystallographic sites) [97]
2.56/0 (4a)
2.53/0.49 (8i)
2.23/0.67
(2d)
2.42/0.41
(2 m)
2.41/1.09
(1a)
2.17/0.46
(2e)
2.09/1.19
(2e,2e)
2.02/0.67
(6c)
1.93/0.33
(1a)
2.04/0.39
(2d)
2.05/0.97
(2d)
1.90/0.40
(4i)
1.95/1.33
(4 h)
1.84/0.27
(16e, 16e, 24f, 24g)
δ/(mm/s)
(crystallographic sites) [98]
2.56/0.29
(4a)
2.49/042
(8i)
2.36/0.78
(2d)
2.38/0.43
(2 m)
2.38/0.91
(1a)
2.19/0.82
(2e)
1.94/0.86
(2e,2e)
2.01/0.69
(6c)
1.86/0.48
(1a)
2.07/0.58
(2d,2d)
1.84/0.28
(4i)
1.96/1.13
(4 h)
1.83/0.31
(16e, 16e, 24f, 24g)