A group of Russian scientists from the Saratov National Research State University named after N. G. Chernyshevsky, together with British colleagues, presented a model of a metamaterial based on ferromagnetic structures capable of operating in the microwave range up to 30 GHz. The development opens up new opportunities for creating high-speed and energy-efficient devices, including components for future 6G networks, radar systems, and neuroprocessors.
Traditional electronic devices transmit data through the movement of electrons, which leads to energy loss due to heating and resistance. An alternative is spintronics — a field that uses spin waves to transmit information. The new metamaterial is based on a ferromagnetic matrix that retains magnetization even without an external field. When exposed to an alternating magnetic field, magnetostatic spin waves are formed in the material, providing signal transmission with minimal energy loss.
In the future, we plan to create a real sample of the metamaterial we have modeled using not only bulk but also thin-film ferromagnetic samples. This will make it easy to integrate it into planar circuits of functional electronics
The development is particularly relevant for promising communication standards, such as 6G, where compact and energy-efficient solutions are required.
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