Figure 2. Dependence of T
c
on z for three quaternary solid solutions (Pb
1-x
Ge
x
Te)
1-z
(Pb
1-y
Ge
y
Se)
z
: 1, x=0.025, y=0.04; 2, x=y=0.06; 3, x=y=0.08.
Figure 2. Dependence of Tc on z for three quaternary solid solutions
(Pb1-xGexTe)1-z(Pb1-yGeySe)z:
1, x=0.025, y=0.04; 2, x=y=0.06; 3, x=y=0.08.