Breaking (and Restoring) Graphene’s Symmetry in a Twistable Electronics Device

A recent Columbia Engineering study demonstrates a new way to tune the properties of 2D materials simply by adjusting the twist angle between them. The researchers built devices consisting of monolayer graphene encapsulated between two crystals of boron nitride and, by adjusting the relative twist angle between the layers, they were able to create multiple moiré pattern—“the first time anyone has seen the full rotational dependence of coexisting moiré superlattices in one device.”

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$1.75 million X-ray tool is first of its kind in the U.S.

Binghamton University, State University of New York will acquire a sophisticated new X-ray tool useful in materials research and R&D for electronics. The $1.75 million system — the third of its kind in the world and the first outside of Europe — will be funded by $1.23 million from the National Science Foundation’s Major Research Instrumentation program and additional money from the campus.

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Physicists Make Graphene Discovery that Could Help Develop Superconductors

When two mesh screens are overlaid, beautiful patterns appear when one screen is offset. These “moiré patterns” have long intrigued artists, scientists and mathematicians and have found applications in printing, fashion and banknotes. Now, a Rutgers-led team has paved the way to solving one of the most enduring mysteries in materials physics by discovering a moiré pattern in graphene, where electrons organize themselves into stripes, like soldiers in formation.

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