title: Two-dimensional C12Mn2/C12Cr2as a room-temperature half metal/antiferromagnetic semiconductor: a systematic study.
abstract: 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 C12Mn2as a ferromagnetic half metal, and 2D single-layer C12Cr2as 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 C12Mn2/C12Cr2, respectively, indicate the stability of room-temperature ferromagnetism/antiferromagnetism. With perfect spin filtering, 2D C12Mn2would be a promising material for future spintronics design.
authors.affiliation: School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China. linzhengzhe@hotmail.com.
authors.forename: Zheng-Zhe
authors.identifier: http://orcid.org/0000-0001-7188-6257
authors.initials: ZZ
authors.lastname: Lin