Abstract
The excess of surface dangling bonds makes the formation of free-standing two-dimensional (2D) metals unstable and hence difficult to achieve. To date, only a few reports have demonstrated 2D metal formation over substrates. Here, we show a free-standing crystalline single-atom-thick layer of iron (Fe) using in situ low-voltage aberration-corrected transmission electron microscopy and supporting image simulations. First-principles calculations confirm enhanced magnetic properties for single-atom-thick 2D Fe membranes. This work could pave the way for new 2D structures to be formed in graphene membranes.
Original language | English |
---|---|
Pages (from-to) | 1228-1232 |
Number of pages | 5 |
Journal | Science |
Volume | 343 |
Issue number | 6176 |
DOIs | |
Publication status | Published - 1 Jan 2014 |
Externally published | Yes |
ASJC Scopus subject areas
- General Medicine
- General