Coherent Transfer of Lattice Entropy via Extreme Nonlinear Phononics in Metal Halide Perovskites
The phonon dynamics of methylammonium lead iodide are explored with time-resolved terahertz spectroscopy and first-principles molecular dynamics simulations, revealing a bidirectional entropy transfer mechanism that may inform the design of perovskite active layers in solar cells and optoelectronic devices.
