Spectroscopy of Spin Waves In Perovskite Excited states - SWIPE

Project summary

Today’s best spin-based computing devices are still plagued by large power consumption because charge currents are needed to modify magnetic states. To fully exploit spintronics, we need to process, transport and store information without using charge currents. The SWIPE project will pioneer a new route using spin waves (magnons) to carry signals over long distances. We will focus on antiferromagnetic (AFM) spin waves, which are fast and impervious to perturbations, but harder to control. Our key proposal is to use lattice vibrations (phonons) to control AFM magnons: Acoustic phonons can generate and propagate signals. Optical waves can couple to electronic and magnetic excitations, and modify the magnon properties. The key advantage of spin waves is their interface with nonvolatile magnetic states, which enables ultralow power information and communication technology. A second important front is sensors and actuators, made exquisitely sensitive and efficient with magnonic devices.