Cu-2(Zn,Mn)(Sn,Al)Se-4: A diluted magnetic semiconductor with decoupled charge and spin doping

We report the successful synthesis and characterization of a diluted magnetic semiconductor Cu-2(Zn,Mn)(Sn,Al)Se-4 with stannite structure. 15% of Mn doping into the quaternary semiconductor Cu2ZnSnSe4 does not induce any type of magnetic ordering. Only when Al is codoped with Mn, is ferromagnetic t...

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Veröffentlicht in:	Journal of magnetism and magnetic materials 2021-10, Vol.536, Article 168064
Hauptverfasser:	Zhi, Guoxiang, Guo, Shengli, Zhang, Rufei, Zhao, Yao, Fu, Licheng, Gu, Yilun, Wang, Kai, Zhang, Haojie, Zhao, Xueqin, Dong, Jinou, Xie, Lingfeng, Ning, Fanlong
Format:	Artikel
Sprache:	eng
Schlagworte:	Materials Science Materials Science, Multidisciplinary Physical Sciences Physics Physics, Condensed Matter Science & Technology Technology
Online-Zugang:	Volltext
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Zusammenfassung:	We report the successful synthesis and characterization of a diluted magnetic semiconductor Cu-2(Zn,Mn)(Sn,Al)Se-4 with stannite structure. 15% of Mn doping into the quaternary semiconductor Cu2ZnSnSe4 does not induce any type of magnetic ordering. Only when Al is codoped with Mn, is ferromagnetic transition observed in Cu-2(Zn,Mn)(Sn,Al)Se-4. Our results demonstrate that Mn substitution for Zn introduces local moments, while Al substitution for Sn introduces carriers, respectively. Both spins and carriers are crucial in the formation of ferromagnetic ordering in Cu-2(Zn,Mn)(Sn,Al)Se-4.
ISSN:	0304-8853 1873-4766
DOI:	10.1016/j.jmmm.2021.168064