Tobias Wagner

Antiferromagnets (AFMs) possess characteristics that make them ideal for spintronic applications: intrinsically, AFM dynamics are much faster compared to FM, AFMs are insensitive to external fields due to their zero net magnetization and produce no stray fields. However, FMs can be manipulated more efficiently. Thus combining AFMs and FMs into hybrid devices to exploit the manipulability of FMs together with the speed of AFMs is a desirable goal. Today, such hybrid devices are widely used, with AFMs having a passive role.

My research is directed to investigate whether AFMs can also be used as active parts in hybrid devices. I am interested in both the static domain wall configurations and domain wall dynamics originating from the combination of an AFM with a FM layer. While using analytical methods to understand the physics and link phenomenology to microscopic theories, I utilize atomistic simulations from ab initio constants and micromagnetic simulations to model larger and more realistic systems. I am also interested in scientific applications of machine learning and artificial intelligence.