Patent ID: 8420236

Claim:
A pn homojunction structure of magnetic material, comprising: an n-type conductive magnetic semiconductor material represented by LnMnO 1−x1 Pn 1−y1 , wherein x1 and y1 satisfy relations: 0<x1<0.1 and 0<y1<0.1, and a p-type conductive magnetic semiconductor material adjoining the n-type conductive magnetic semiconductor material, the p-type conductive magnetic semiconductor material being represented by LnMnO 1+x2 Pn 1+y2 , wherein x2 and y2 satisfy 0<x2<0.1 and 0<y2<0.1, wherein LnMnOPn is a layered oxy-pnictide compound, Ln is at least one type selected from Y and rare earth elements of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dv, Ho, Er, Tm, Yb, and Lu, and Pn is at least one selected from pnicogen elements of N, P, As, Bi, and Sb.