Patent ID: 8636926

Claim:
A compound semiconductor, represented by Chemical Formula 1 below: In x M y Co 4-m A m Sb 12-n-z X n Te z Chemical Formula 1 where, in the Chemical Formula 1, M is at least one of Zn and Cd and may additionally include at least one selected from the group consisting of Ca, Sr, Ba, Ti, V, Cr, Mn, Cu, Pd, Ag, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, A is at least one selected from the group consisting of Fe, Ni, Ru, Rh, Pd, Ir and Pt, X is at least one selected from the group consisting of Si, Ga, Ge and Sn, 0<x<1, 0<y<1, 0≦m≦1, 0≦n<9 and 0<z≦2.