Structural origin of ‘hidden state’ in manganite thin film revealed by picosecond time-resolved X-ray diffraction

Photo-induced phase transition (PIPT) has caused great excitement in materials science because ultra-fast alteration of the magnetic, dielectric, structural and optical properties of materials can be brought about with very weak photonic excitation as a result of cooperative interactions. An essential question that arises is how we can identify a novel phase of solid that is uniquely generated under photo-excited conditions.

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Structural origin of ‘hidden state’ in manganite thin film revealed by picosecond time-resolved X-ray diffraction