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Chiral valley phonons and flat phonon bands in moiré materials
An object is chiral if it is distinguishable from its mirror image, for example, one's left and right hands. Chirality, or handedness, has played a vital role in understanding many phenomena in physics, chemistry, and biology. In this work, we theoretically demonstrated that the collective vibrations of atoms, or phonons, in a two-dimensional moiré material can be chiral.
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Deeply sad news about colleague and friend Dr Nicola Bonini - one of the kindest people I have ever known. kcl.ac.uk/people/nicola-…