Twisted materials—known as moiré structures—have revolutionized modern physics, emerging as today's "alchemy" by creating entirely new phases of matter through simple geometric manipulation. The term "moiré" may sound familiar—it describes the strange rippling patterns you sometimes see when photographing striped shirts or screens; in physics, the same underlying principle applies at the atomic scale. Imagine taking two atomically thin sheets of either the same or different materials, stacking them up together, and rotating one layer slightly relative to the other.
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