9 Mössbauer Spectroscopic Studies on Atomic Diffusion in Materials
479
We show typical in-beam spectra measured at different temperatures between 150
and 700 K in the [100] direction in Fig. 9.32. Figure 9.33 plots the fit parameters as
functions of temperature: (a) total area A, (b) hyperfine field B hf , (c) centre shift δ,
and (d) full width at half maximum (full red symbols). We compare the results
Fig. 9.32 In-beam
Mössbauer spectra of α-Fe
between 150 and 700 K
measured in [100] at a
detector distance of 0.07 m.
The 150 K spectrum was
obtained in an earlier
experiment under otherwise
similar conditions. Reprinted
figure from [42] with
permission, ©Trans Tech
Publications, Ltd.
Reproduced with permission.
All right reserved
Fig. 9.33 Temperature
dependence of the fit
parameters above 300 K;
(a) Area A, (b) hyperfine
field B hf , (c) centre shift δ,
and (d) full width at half
maximum . Open symbols
refer to the control
experiment by an absorber
experiment in laboratory.
Reprinted figure from [42]
with permission, ©Trans
Tech Publications, Ltd.
Reproduced with permission.
All right reserved