Spin-orbit–driven ferromagnetism detected in 'magic-angle' twisted bilayer graphene
A research team from Brown University has found a surprising new phenomenon that can arise in ‘magic-angle graphene’ – two sheets of graphene that are stacked together at a particular angle with respect to each other, giving rise to various fascinating behaviors. In a recent research, the team showed that by inducing a phenomenon known as spin-orbit coupling, magic-angle graphene becomes a powerful ferromagnet.
“Magnetism and superconductivity are usually at opposite ends of the spectrum in condensed matter physics, and it’s rare for them to appear in the same material platform,” said Jia Li, an assistant professor of physics at Brown and senior author of the research. “Yet we’ve shown that we can create magnetism in a system that originally hosts superconductivity. This gives us a new way to study the interplay between superconductivity and magnetism, and provides exciting new possibilities for quantum science research.”
Source: https://www.spintronics-info.com/spin-orbit-driven-ferromagnetism-detected-magic-angle-twisted-bilayer-graphene
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