(Sr,Na)(Zn,Mn)2As2: A diluted ferromagnetic semiconductor with the hexagonal CaAl2Si2 type structure

B. J. Chen, K. Zhao, Z. Deng, W. Han, J. L. Zhu, X. C. Wang, Q. Q. Liu, B. Frandsen, L. Liu, S. Cheung, F. L. Ning, T. J. S. Munsie, T. Medina, G. M. Luke, J. P. Carlo, J. Munevar, Y. J. Uemura, and C. Q. Jin
Phys. Rev. B 90, 155202 – Published 14 October 2014

Abstract

A new diluted ferromagnetic semiconductor (Sr,Na)(Zn,Mn)2As2 is reported, in which charge and spin doping are decoupled via Sr/Na and Zn/Mn substitutions, respectively, being distinguished from classic (Ga,Mn)As, where charge and spin doping are simultaneously integrated. Different from the recently reported ferromagnetic (Ba,K)(Zn,Mn)2As2, this material crystallizes into the hexagonal CaAl2Si2 type structure. Ferromagnetism with a Curie temperature up to 20 K has been observed from magnetization. The muon spin relaxation measurements suggest that the exchange interaction between Mn moments of this new system could be different from the earlier diluted magnetic semiconductors (DMS) systems. This system provides an important means for studying ferromagnetism in DMS.

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  • Received 30 March 2014
  • Revised 29 August 2014
  • Corrected 9 December 2014

DOI:https://doi.org/10.1103/PhysRevB.90.155202

©2014 American Physical Society

Corrections

9 December 2014

Erratum

Publisher's Note: (Sr,Na)(Zn,Mn)2As2: A diluted ferromagnetic semiconductor with the hexagonal CaAl2Si2 type structure [Phys. Rev. B 90, 155202 (2014)]

B. J. Chen, K. Zhao, Z. Deng, W. Han, J. L. Zhu, X. C. Wang, Q. Q. Liu, B. Frandsen, L. Liu, S. Cheung, F. L. Ning, T. J. S. Munsie, T. Medina, G. M. Luke, J. P. Carlo, J. Munevar, Y. J. Uemura, and C. Q. Jin
Phys. Rev. B 90, 239906 (2014)

Authors & Affiliations

B. J. Chen1, K. Zhao1, Z. Deng1, W. Han1, J. L. Zhu1, X. C. Wang1, Q. Q. Liu1, B. Frandsen2, L. Liu2, S. Cheung2, F. L. Ning3, T. J. S. Munsie4, T. Medina4, G. M. Luke4, J. P. Carlo5, J. Munevar6, Y. J. Uemura2, and C. Q. Jin1

  • 1Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Collaborative Innovation Center of Quantum Matter, Beijing, China
  • 2Department of Physics, Columbia University, New York, New York 10027, USA
  • 3Department of Physics, Zhejiang University, Hangzhou 310027, China
  • 4Department of Physics and Astronomy, McMaster University, Hamilton L8S 4M1, Canada
  • 5Department of Physics, Villanova University, Villanova, Pennsylvania 19085, USA
  • 6Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil

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Issue

Vol. 90, Iss. 15 — 15 October 2014

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