Tunable Polariton Rabi Oscillation in Phase‐Changing Perovskite Microcavities (Adv. Sci. 20/2025)

Tunable Polariton Rabi Oscillation This cover illustration highlights the tunable Rabi oscillation of exciton-polaritons in phase-changing perovskites. As the perovskite undergoes a structural phase transition, lattice distortion due to polar cation alignments can occur, inducing ferroelectricity. The emergence of ferroelectricity alters exciton-photon interactions, resulting in significant modification of the exciton oscillator strength, leading to the tunable Rabi oscillation of polaritons. More details can be found in article number 2417596 by Chang-Hee Cho and co-workers.