fig5

Figure 5. (A) The temperature dependence of the electrical resistance of SnSb₂Te₄ at various high pressures. (B) The pressure dependence of the critical temperatures Tc^onset and Tc^zero of SnSb₂Te₄. The solid and hollow circles stand for Tc^onset and Tc^zero, respectively. The inset depicts the differential curve dR/dT of the electrical resistance near Tc. The symbols Tc^onset, Tc^mid, and Tc^zero are defined accordingly. Tc^onset refers to the temperature at which the drop in electrical resistance begins; Tc^zero refers to the temperature at which electrical resistance decreases to zero; Tc^mid refers to the temperature at which the maximum of the dR/dT curve occurs.