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Nanomagnets come together Physicists in the US have shown that two nano-scale magnets can be made to oscillate in phase when they are positioned close to one another. The phenomenon, which is similar to the way two pendulum clocks mounted on the same wall become synchronized via the weak coupling of acoustic signals, produces a stable microwave output. It could therefore replace bulky and expensive components which operate on the same "phase-locking" principle in devices such as portable phones and radar systems.
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