Free-standing single-atom-thick iron membranes suspended in graphene pores

Jiong Zhao, Qingming Deng, Alicja Bachmatiuk, Gorantla Sandeep, Alexey Popov, Jürgen Eckert, Mark H. Rümmeli

Research output: Contribution to journalJournal articleResearchpeer-review


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 languageEnglish
Issue number6176
Pages (from-to)1228-1232
Number of pages5
Publication statusPublished - 2014
Externally publishedYes


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