Figure 7: 1/Zc of three types of Bi2-Te3 based materials which were corrected for the contact resistance.

Calculated Zc (dash-dot lines) were fit to the measured Zc (symbols) by adjusting the thermal conductance of lead wires. The y-axis intercepts of the calculated Zc correspond to the intrinsic 1/Z multiplied by [αt/(αt − αw)] (dash lines).