We provide a survey of coherent spin dynamics in lead halide perovskite semiconductors: bulk crystals, nanocrystals and 2D structures. Time-resolved Faraday/Kerr rotation was used. We measure spin relaxation and spin coherence times, and evaluate Lande g-factors. We establish in bulk materials universal trends for the g-factors on the band gap, which are modified by quantum confinement in perovskite nanocrystals. Optically detected NMR highlights the dominating role of Pb ions. Spin mode locking based on spin synchronization under periodic laser excitation is found in nanocrystals in glass.

Prof. Dmitri Yakovlev graduated from St. Petersburg Polytechnical University and earned his Ph.D. at the A.F. Ioffe Physico-Technical Institute. He is currently an APL Professor at TU Dortmund University.
With 670 publications to his name, he was awarded the EF Gross Medal in 2017 and the AF Ioffe Prize in 2011 from the A.F. Ioffe Physico-Technical Institute.
His research focuses on optical studies of semiconductor nanostructures, spin dynamics in various semiconductors and their hetero- and nanostructures, nonlinear exciton spectroscopy, and time-resolved characterization of acoustic solitons.