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Light control of emergent quantum phenomena is a widely used external stimulus for quantum materials. Generally, perovskite strontium ruthenate SrRuO3 has an itinerant ferromagnetism with a low‐spin state. However, the phase of intermediate‐spin (IS) ferromagnetic metallic state has never been seen. Here, by means of UV‐light irradiation, a photocarrier‐doping‐induced Mott‐insulator‐to‐metal phase...
Insulator–Metal Transition
In article number 2211612, Zhicheng Zhong, Xuefeng Wang, and co‐workers report that UV‐light irradiation on perovskite‐based heterostructures can drive the photocharge transfer from SrTiO3 substrates to intermediate‐spin ferromagnetic SrRuO3 ultrathin films containing oxygen vacancies. As a consequence, a reversible Mott‐insulator‐to‐metal phase transition occurs in the...
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