Volume 120, Number 4, November 2017
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||09 February 2018|
La(Zn1−2xMnxCux)SbO: A new diluted magnetic semiconductor isostructural to 1111-type iron pnictide superconductors
1 Department of Physics, Zhejiang University - Hangzhou 310027, China
2 Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences Beijing 100190, China
3 University of Chinese Academy of Sciences - Beijing 100049, China
4 Department of Physics, Hangzhou Normal University - Hangzhou 310016, China
5 Collaborative Innovation Center of Advanced Microstructures - Nanjing 210093, China
Received: 28 September 2017
Accepted: 22 January 2018
A new diluted magnetic semiconductor La(Zn1−2xMnxCux)SbO in bulk form has been successfully synthesized. Spins and carriers are introduced by co-doping Mn and Cu into Zn sites of the parent semiconductor LaZnSbO. Doping Mn or Cu alone does not induce magnetic ordering. Only when Mn and Cu are co-doped, can the system undergo a ferromagnetic transition below the Curie temperature . The ferromagnetic La(Zn1−2xMnxCux)SbO shares the same two-dimensional crystal structure as that of the 1111-type iron pnictide superconductor . A relatively large coercive field of is observed from the iso-thermal magnetization measured at 2 K.
PACS: 75.50.Pp – Magnetic semiconductors / 75.50.Lk – Spin glasses and other random magnets / 75.30.Cr – Saturation moments and magnetic susceptibilities
© EPLA, 2018
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