- Advanced Condensed Matter Physics
- Organic and Molecular Conductors Research
- Magnetism in coordination complexes
- Microwave and Dielectric Measurement Techniques
- Radio Frequency Integrated Circuit Design
- Quantum and electron transport phenomena
University of Stuttgart
2016-2021
A gapped spin liquid Quantum liquids avoid conventional magnetic ordering down to the lowest temperatures. Among candidates for this state of matter, organic salts such as κ-(BEDT-TTF) 2 Cu (CN) 3 have been prominent. Miksch et al. studied material using electron resonance elucidate nature its ground state. Instead expected gapless state, temperature dependence susceptibility suggests formation a gap. Science , issue p. 276
Metallic coplanar microwave resonators are widely employed at room temperature, but their low-temperature performance has received little attention so far. We characterize compact copper with multiple modes from 2.5 to 20 GHz temperatures as low 5 K. investigate the influence of center conductor width (20–100 µm) and coupling gap size (10–50 µm), we observe a strong increase quality factor (Q) for wider conductors, reaching values up 470. The magnetic-field dependence is weak, maximum change...