Ultra-thin magnet boost for future electronics

The study, led by Hang Chi, Canada Research Chair in Quantum Electronic Devices and Circuits, & Assistant Professor of Physics at the University of Ottawa’s Faculty of Science, demonstrates a new way to strengthen magnetism in materials just a few atoms thick. According to the team, this is a critical step toward making these magnets practical for real-world technologies.

Boosting magnetic strength by 20 per cent

Traditional magnets are bulky and cannot be easily miniaturised for advanced electronics. Ultra-thin (2D) magnets are just a few atoms thick and could enable smaller, more powerful devices. However, they have a major drawback in that they usually only work at extremely cold temperatures.

To solve this problem, Professor Chi’s team combined these ultra-thin magnets with a topological insulator, which allows electrons to flow smoothly along its surface. When the two materials were layered together, the magnetism became stronger and more stable, even at higher temperatures.

“This is like giving the magnet a boost,” Professor Chi said in a statement. “By pairing it with the right material, we can enhance its performance without damaging it. This could be a game-changer for future electronics.”