Surface acoustic wave magnetic field sensors (A09)

• Subject Area: Synthesis and Properties of Functional Materials ; Microsystems
• Term: since 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 286471992

The research project involves research on Love wave surface acoustic wave (SAW) devices as magnetic field sensors. Two types are studied: SC SAW sensors using piezoelectric single crystals and thin film SAW sensors using a piezoelectric AlScN layer. For the SC SAW, LiNbO3 is to be systematically investigated as a substrate, which enables a wide range variation in operating frequency and design. For thin film SAW sensors, the focus is on improving sensitivity through phononic crystals, reducing substrate losses, and exploring growth of inclined c-axis AlScN films on sapphire.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1261: Magnetoelectric Sensors: From Composite Materials to Biomagnetic Diagnostics
• Applicant Institution: Christian-Albrechts-Universität zu Kiel
• Project Heads: Professor Dr. Fabian Lofink; Professor Dr.-Ing. Eckhard Quandt