Nanowerk April 16, 2018
An international team of researchers (Russia, UK, Germany) has devised a method to study extremely fast phase transitions in Mott insulators. Their theory involves firing extremely short tailored laser pulses at a material to observe how the electrons in the material are excited into motion and emit resonant vibrations at specific frequencies, as harmonics of the incident light. By analysing the high harmonic spectrum, they could observe the change in the structural order in the materials. Such phase transitions should allow us to develop entirely new switching elements for the next-generation electronics that are faster and potentially more energy efficient… read more. Open Access TECHNICAL ARTICLEÂ
The top panel shows the average number of doublon-hole pairs per site (blue) and the decay of the insulating field-free ground state (red). (Image: MBI Berlin)