Past Events

Abstract

Via the interplay between electrons and photons, the charge transport in semiconductor materials can be manipulated and controlled by using light. This enables electrical detection of charge dynamics in the optical and infrared frequency regimes, as well known to the semiconductor research community. Recently, this technique has been further developed and introduced to the spintronics and magnetism research communities. By utilizing the interplay of spins, charges, and photons, electrical detection of spin dynamics in the microwave regime becomes a powerful new tool for spintronics research. In this talk, I will review our work in the new field of dynamic spitronics by addressing

1. Electrical detection of ferromagnetic resonance and spin waves in magnetic materials.
2. Coherent manipulation of dc currents via a phase-modulated microwave technique.
3. Electrical detection of nonlinear magnetization dynamics.

These results will be presented and discussed in comparison with relevant intriguing results obtained from the semiconductor spintronics community.

Coffee and tea will be served 20 minutes prior to the seminar.