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 language | English |
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Pages (from-to) | 259-263 |
Number of pages | 5 |
Journal | Journal of Physical Chemistry Letters |
Volume | 4 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2013 Jan 17 |
Keywords
- Catalysis
- Interfaces
- Porous Materials
- Surfaces
ASJC Scopus subject areas
- Materials Science(all)
- Physical and Theoretical Chemistry