TY - JOUR AU - 천상모 DA - 2016/01 PY - 2016 UR - https://www.nature.com/articles/ncomms10453 UR - http://hdl.handle.net/20.500.11754/30432 AB - The controllability over strongly correlated electronic states promises unique electronic devices. A recent example is an optically induced ultrafast switching device based on the transition between the correlated Mott insulating state and a metallic state of a transition metal dichalcogenide 1T-TaS2. However, the electronic switching has been challenging and the nature of the transition has been veiled. Here we demonstrate the nanoscale electronic manipulation of the Mott state of 1T-TaS2. The voltage pulse from a scanning tunnelling microscope switches the insulating phase locally into a metallic phase with irregularly textured domain walls in the charge density wave order inherent to this Mott state. The metallic state is revealed as a correlated phase, which is induced by the moderate reduction of electron correlation due to the charge density wave decoherence. PB - NATURE PUBLISHING GROUP KW - DENSITY WAVES KW - LAYER COMPOUNDS KW - PHASE KW - GAP KW - SUPERCONDUCTIVITY KW - TRANSITIONS KW - 2H-TASE2 KW - GATA4SE8 KW - CRYSTAL KW - DRIVEN TI - Nanoscale manipulation of the Mott insulating state coupled to charge order in 1T-TaS_2 DO - 10.1038/ncomms10453 T2 - NATURE COMMUNICATIONS ER -