First synthetic charged domain wall in a 2D material demonstrated by stacking/ twisting 2 layer 2D boron nitride at specific angles

https://www.eurekalert.org/news-releases/1122589

"location, shape, electrical property control through mechanical twisting rather than chemical growth... carry concentrated electrical charge, effectively 1D conducting wires embedded within insulator, can turn wires on/ off... applying external electric field can flip polarization making wall conduct/ resist electricity... causes memory to be non-volatile... allows layering materials with vastly different polarizations (low/ high)... significantly smaller/ more energy-efficient.. nanoelectronics"