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Infinite‐Layer Nickelates
In article number 2304146, Kui‐juan Jin and co‐workers report the novel photoinduced insulator‐metal and superconducting‐like phase transitions in the infinite‐layer NdNiO2 film, bringing forward a unique way to manipulate the electronic correlation with photons and trigger intriguing quantum phase transitions.
The quantum phase transition caused by regulating the electronic correlation in strongly correlated quantum materials has been a research hotspot in condensed matter science. Herein, a photon‐induced quantum phase transition from the Kondo‐Mott insulating state to the low temperature metallic one accompanying with the magnetoresistance changing from negative to positive in the infinite‐layer NdNiO...
Defects are detrimental for optoelectronics devices, such as stacking faults can form carrier‐transportation barriers, and foreign impurities (Au) with deep‐energy levels can form carrier traps and nonradiative recombination centers. Here, self‐catalyzed p‐type GaAs nanowires (NWs) with a pure zinc blende (ZB) structure are first developed, and then a photodetector made from these NWs is fabricated...
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