Thermoelectric material formed of Mg2Si-based compound and production method therefor

摘要

A thermoelectric material (and a method for producing the same) is essentially formed of an Mg2Si-based compound represented by the chemical formula Mg2-x-y-zAlxZnyMnzSi (x≠0, y≠0, z≠0, 0.04≦̸y/x≦̸0.6, and 0.013≦̸z/x≦̸0.075) wherein the total amount of Al, Zn, and Mn is 0.3 at % to 5 at %. Mg2-x-y-zAlxZnyMnz is provided in the form of an Mg alloy.