Ultrafast and persistent photoinduced phase transition at room temperature monitored by streaming powder diffraction.

ABSTRACT: Ultrafast photoinduced phase transitions at room temperature, driven by a single laser shot and persisting long after stimuli, represent emerging routes for ultrafast control over materials' properties. Time-resolved studies provide fundamental mechanistic insight into far-from-equilibrium electronic and structural dynamics. Here we study the photoinduced phase transformation of the Rb_0.94Mn_0.94Co_0.06[Fe(CN)₆]_0.98 material, designed to exhibit a 75 K wide thermal hysteresis around room temperature between Mn^IIIFe^II tetragonal and Mn^IIFe^III cubic phases. We developed a specific powder sample streaming technique to monitor by ultrafast X-ray diffraction the structural and symmetry changes. We s

SUBMITTER: Herve M 

PROVIDER: S-EPMC10808240 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature