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Two-dimensional C 12 Mn 2 /C 12 Cr 2 as a room-temperature half metal/antiferromagnetic semiconductor: a systematic study.
Physical Chemistry Chemical Physics : PCCP 2017 January 26
Ferromagnetism in half-metallic two-dimensional (2D) materials can lead to unique spintronics applications. In this paper, we report first-principle calculations that predict 2D single-layer C12 Mn2 as a ferromagnetic half metal, and 2D single-layer C12 Cr2 as an antiferromagnetic semiconductor. A systematic study is carried out to demonstrate the reliability of our research. We employ a bottom-up method to investigate the structural and magnetic stability of single, two and more Cr or Mn atoms on graphyne at room temperature. The very high Curie/Néel temperatures of 2D C12 Mn2 /C12 Cr2 , respectively, indicate the stability of room-temperature ferromagnetism/antiferromagnetism. With perfect spin filtering, 2D C12 Mn2 would be a promising material for future spintronics design.
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