51. (Ca,Na)(Zn,Mn)2As2: A new spin and charge doping decoupled diluted ferromagnetic semiconductor
- Author
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Graeme Luke, Jeremy P. Carlo, Sky C. Cheung, J. Munevar, Lian Liu, Timothy J. S. Munsie, Yohei Uemura, Guoqiang Zhao, Kunyu Zhao, Changqing Jin, G. M. Zhang, Q. Q. Liu, Benjamin A. Frandsen, Bin Chen, Xiongjun Wang, Wen-Peng Han, Zheng Deng, J. L. Zhu, T. Medina, and Fanlong Ning
- Subjects
Condensed Matter::Materials Science ,Materials science ,Ferromagnetism ,Condensed matter physics ,Hall effect ,Electrical resistivity and conductivity ,Magnet ,Doping ,General Physics and Astronomy ,Curie temperature ,Condensed Matter::Strongly Correlated Electrons ,Magnetic semiconductor ,Spin (physics) - Abstract
Here we report the successful synthesis of a spin- & charge-decoupled diluted magnetic semiconductor (Ca,Na)(Zn,Mn)2As2, crystallizing into the hexagonal CaAl2Si2 structure. The compound shows a ferromagnetic transition with a Curie temperature up to 33 K with 10% Na doping, which gives rise to carrier density of np~10^20 cm^-3. The new DMS is a soft magnetic material with HC
- Published
- 2014