Figure 41:
Mössbauer spectra for pure Fe foil (a) and nanoparticles ((b)–(e)) of
𝐷
=
1
3
±
2
nm size at different temperatures. (a) 293 K; (b) 293 K; (c) 80 K; (d) 4.2 K; (e) particles preliminarily aged at 80 K and subsequently warmed up to 293 K.
