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Researchers Create Complex Spin Wave Network for Potential Energy Savings

This groundbreaking method could revolutionize spin wave technology. The complex network of 198 crossings brings us closer to substantial energy savings in future applications.

In this image, we can see a keychain of J alphabet.
In this image, we can see a keychain of J alphabet.

Researchers Create Complex Spin Wave Network for Potential Energy Savings

A groundbreaking method has been developed by a collaborative research scholar team from Heidelberg and Münster universities, enabling the creation of the most complex spin wave network to date. This network boasts an impressive 198 crossings and could pave the way for significant energy savings in future applications.

The scholar team, led by Prof. Dr. Wolfram Pernice, has published their findings in the prestigious journal 'Nature Materials'. Their innovative approach involves using yttrium iron garnet, a material that transmits spin waves with minimal energy loss. This allows information to be transmitted efficiently, contributing to potential substantial energy savings.

The method involves writing waveguides directly into an 110 nanometer thin film using a silicon ion beam. This technique allows for the creation of complex structures with high quality, flexibility, and reproducibility. The team can control various properties of the spin wave, such as its wavelength and reflection at interfaces. The German Research Foundation has funded this work as part of the collaborative research center 'Intelligent Matter' based at Münster University.

Prof. Pernice, currently at the Karlsruhe Institute of Technology (KIT), heads a Helmholtz International Research Group on nanophotonic circuits. Shabnam Taheriniya, a postdoctoral researcher in Heidelberg, has been working in his team since April 2023.

The development of this method marks a significant step forward in spin wave technology. It enables the realization of complex spin wave networks, which could lead to substantial energy savings in future applications. The team's work, funded by the German Research Foundation, demonstrates the potential of collaborative research in driving technological innovation.

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