Patterning graphitic C-N sheets into a kagome lattice for magnetic materials

Xiaowei Li, Jian Zhou, Qian Wang, Yushiyuki Kawazoe, Puru Jena

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

We propose porous C-N-based structures for biocompatible magnetic materials that do not contain even a single metal ion. Using first-principles calculations based on density functional theory, we show that when patterned in the form of a kagome lattice, nonmagnetic g-C3N4 not only becomes ferromagnetic but also its magnetic properties can be further enhanced by applying external strain. Similarly, the magnetic moment per atom in ferromagnetic g-C4N3 is increased three fold when patterned into a kagome lattice. The Curie temperature of g-C3N 4 kagome lattice is 100 K, while that of g-C4N3 kagome lattice is much higher, namely, 520 K. To date, all of the synthesized two- and three-dimensional magnetic kagome structures contain metal ions and are toxic. The objective of our work is to stimulate an experimental effort to develop nanopatterning techniques for the synthesis of g-C3N 4- and g-C4N3-based kagome lattices.

Original languageEnglish
Pages (from-to)259-263
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume4
Issue number2
DOIs
Publication statusPublished - 2013 Jan 17

Keywords

  • Catalysis
  • Interfaces
  • Porous Materials
  • Surfaces

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

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