Abstract
In recent years, transient electric field is becoming a means for the generation of hidden states or phase transitions. In this study, the spatial-temporal distribution of picosecond surface electric fields, associated with the femtosecond-laser-induced charge emission from ${\mathrm{La}}_{0.67}{\mathrm{Sr}}_{0.33}{\mathrm{MnO}}_{3}$ (LSMO) single-crystal films, were interrogated by subpicosecond electron pulses and reconstructed by a three-layer theoretical model. A strong picosecond surface electric field, on the order of 100 kV/m, was generated on LSMO films. Such self-induced transient electric fields may be a promising means for controlling ultrafast processes in materials.
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