For the first time, high-frequency topological kink modes — kink magnetoplasmons (KMPs) — have been demonstrated in a unique device featuring biased magnetic domains.
Significance and Impact
The demonstrated KMP architecture could be generalized to more complex magnetic patterns useful for novel integrated topological circuits.
- KMPs localized at the magnetic domain boundaries in a homogeneous two-dimensional electron gas were experimentally demonstrated.
- Sample processing used a scanning electron-beam and focused ion beam system, and low-temperature sample characterization used a dilution refrigerator system; both systems are at the Center for Nanoscale Materials (CNM).
Work was performed in part at CNM.
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