Fig. 4. R(T) curves for Pb
0.8
Sn
0.2
Te
0.5
Se
0.5
sample, illustrating "quenching" effect. Curves were obtained during slow heating after quenching from 77 to 4.2 K (1) and during subsequent slow cooling (2) and slow heating (3).
Fig. 4. R(T) curves for
Pb0.8Sn0.2Te0.5Se0.5 sample,
illustrating "quenching" effect. Curves were obtained during slow
heating after quenching from 77 to 4.2 K (1) and during subsequent slow
cooling (2) and slow heating (3).