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Individual stretching of graphene layers in a van der Waals stack drastically modifies the electronic properties of the whole structure. This result opens new possibilities for the strain-engineering of 2D materials.
Another configuration not available in LEGO® consists stretching one block before assembling, a possiblity that no one has yet investigated. This is precisely what Vincent Renard of Grenoble Alps University in France and colleagues have done. They found that graphene bilayers made of sheets with different amounts of tension display dramatically altered electrical properties. The new electrical properties suggest a physics similar to that observed at the magic angle.
Thesis presented November 29, 2017 by Loïc Huder. PhD thesis available as a pdf file.
Thesis presented March 18, 2016 by Toai Le Quang. PhD thesis available as a pdf file.
CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.