Zero-field quantum beats and spin decoherence mechanisms in CsPbBr₃ perovskite nanocrystals

• Main Authors: Cai, Rui, Wadgaonkar, Indrajit, Lim, Melvin Jia Wei, Dal Forno, Stefano, Giovanni, David, Feng, Minjun, Ye, Senyun, Battiato, Marco, Sum, Tze Chien
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2023
• Subjects: Science::Physics; Halide Perovskite Nanocrystals; Exciton Fine Structure Splitting; Quantum Beating; Spin Decoherence
• Online Access: https://hdl.handle.net/10356/166620
• Institution: Nanyang Technological University

Coherent optical manipulation of exciton states provides a fascinating approach for quantum gating and ultrafast switching. However, their coherence time for incumbent semiconductors is highly susceptible to thermal decoherence and inhomogeneous broadening effects. Here, we uncover zero-field excito...