The intrinsic ferromagnetism in a MnO2 monolayer

M. Kan, J. Zhou, Q. Sun, Y. Kawazoe, P. Jena

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94 Citations (Scopus)

Abstract

The Mn atom, because of its special electronic configuration of 3d 54s2, has been widely used as a dopant in various two-dimensional (2D) monolayers such as graphene, BN, silicene and transition metal dichalcogenides (TMDs). The distributions of doped Mn atoms in these systems are highly sensitive to the synthesis process and conditions, thus suffering from problems of low solubility and surface clustering. Here we show for the first time that the MnO2 monolayer, synthetized 10 years ago, where Mn ions are individually held at specific sites, exhibits intrinsic ferromagnetism with a Curie temperature of 140 K, comparable to the highest TC value achieved experimentally for Mn-doped GaAs. The well-defined atomic configuration and the intrinsic ferromagnetism of the MnO2 monolayer suggest that it is superior to other magnetic monolayer materials.

Original languageEnglish
Pages (from-to)3382-3386
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume4
Issue number20
DOIs
Publication statusPublished - 2013 Oct 17

Keywords

  • Curie temperature
  • coupling
  • magnetism
  • nanosheet
  • spintronics

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

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    Kan, M., Zhou, J., Sun, Q., Kawazoe, Y., & Jena, P. (2013). The intrinsic ferromagnetism in a MnO2 monolayer. Journal of Physical Chemistry Letters, 4(20), 3382-3386. https://doi.org/10.1021/jz4017848