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Yittrium iron garnet films allow the tuning of negative permeability.

Yittrium iron garnet films allow the tuning of negative permeability. Correct Answer True

A tunable metamaterial has variable response to an electromagnetic wave incident on it. Usually, the lattice structures of tunable metamaterials are adjustable in real time, making it possible to reconfigure a metamaterial device during operation. Yittrium iron garnet films are good examples of tunable metamaterials. They permit the continuous tuning of negative permeability that in turn allows for a tunable frequency range.

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