An international research team from TU Dortmund University, the Russian Academy of Sciences and ETH Zurich has discovered that the electron dynamics in perovskite crystals are largely determined by lead. This discovery suggests that replacing this element could enable better control of the crystals' material properties.
TU Dortmund University Professor Dmitri Yakovlev's group investigated ultrafast interaction processes between optically excited charge carriers and their surroundings in perovskite crystals. The team was able to show that the magnetic properties can be regulated on an ultrafast time scale through the use of optical pulses with a duration of trillionths of a second. This proof that they can be controlled is of particular interest for possible new applications.
