[Tu-A1-G] Electron Correlations in Low-Dimensional Systems

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[Tu-A1-G-03] Zero-Bias Anomalies in a Quantum Dot: Hund Meets Kondo

〇Olfa Dani¹, Johannes C. Bayer^1,2, Timo Wagner¹, Gertrud Zwicknagl³, Rolf J. Haug¹ (1. Leibniz Univ. Hannover (Germany), 2. Physikalisch-Technische Bundesanstalt (Germany), 3. Technische Univ. Braunschweig (Germany))

Electrical transport in a GaAs quantum dot shows zero-bias anomalies for all electron fillings in the third shell. Charging energy analysis confirms Hund’s exchange, while spectral analysis attributes these broad features to both Kondo physics and excited Hund’s multiplets.