A novel diluted magnetic semiconductor (Ca,Na)(Zn,Mn)<sub>2</sub>Sb<sub>2</sub> with decoupled charge and spin dopings

A novel diluted magnetic semiconductor (Ca,Na)(Zn,Mn)₂Sb₂ with decoupled charge and spin dopings

Gu Yilun¹, Zhang Haojie¹, Zhang Rufei¹, Fu Licheng¹, Wang Kai¹, Zhi Guoxiang¹, Guo Shengli¹, Ning Fanlong^{1, 2, †}

(a) The temperature dependence of DC magnetization for (Ca_1-xNa_x)(Zn_2-xMn_x)Sb₂ (x = 0.08, 0.10, 0.12, 0.16, 0.20) measured under field-cooling with external field of 1000 Oe. (b) The derivative of moment versus temperature for (Ca_x1-xNa_x)(Zn_x2-xMn_x)Sb₂ (x=0.08, 0.10, 0.12, 0.16, 0.20). The arrow marks the Curie temperature of x = 0.08. (c) The plot of 1/(M-M₀) versus temperature for (Ca_x1-xNa_x)(Zn_x2-x Mn_x)Sb₂ (x = 0.08, 0.10, 0.12, 0.16, 0.20). The arrow marks the Weiss temperature of x = 0.20. (d) Iso-thermal magnetization for (Ca_x1-xNa_x)(Zn_x2-xMn_x)Sb₂ (x = 0.08, 0.10, 0.12, 0.16, 0.20) at 2 K.