acoustic waves

Manipulating Magnetization with Acoustic Waves

Pallavi Dhagat, Professor, Electrical Engineering and Computer Science, Oregon State University, USA

Feb 23, 12:00 - 13:00

B9 L2 H1

magnetization acoustic waves

In this seminar, I will present our work on manipulating magnetization with acoustic waves. The temporally and spatially varying strain in acoustic waves produces a corresponding change in the local anisotropy of magnetostrictive materials through the Villari effect. This magneto-acoustic coupling may be used for patterning magnetic films and for nonlinear signal processing such as amplification and correlation of spin waves. I will discuss our experiments and results towards these application possibilities, and also present the techniques we have developed to characterize magnetostriction.