Neon atoms between graphene sheets poke the top sheet from below and stretch the crystalline lattice, forming a bubble at a pressure larger than that of the ocean at its greatest depth. The ORNL method can introduce large local strains into 2D lattices in cases where conventional methods fail.
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/oakridgelab/32895664142/">Neon atoms between graphene sheets</a>