Iterambere mubushakashatsi bwibikoresho-bibiri byerekanwe na siyansi!

Moiré superlattices nuburyo bwigihe cyashizweho nudusimba duto hagati ya latike ebyiri cyangwa nyinshi. Muri iyi superlattices ya moiré, imyitwarire ya elegitoronike irashobora kugira ingaruka zikomeye, bigatuma havuka leta zidasanzwe nka insulirant ya kwant. Ariko, kugera kuri moiré superlattices kumurongo muto uhindagurika bikomeje kuba ingorabahizi kubikoresho bimwe. Ibi nibyingenzi mugusobanukirwa no gukoresha ingaruka zifitanye isano na electron, kuko ihuriro rya electron akenshi rigaragara cyane kumpande ntoya. Nyamara, kubera ingorane zigeragezwa, ubushakashatsi bufitanye isano rikomeye muri sisitemu byibanze cyane cyane ku mpande zihariye zigoretse cyangwa kugoreka intera nini, kubura kugenzura no gukora iperereza kuri gahunda.

Mu gukemura iki kibazo, Porofeseri Benjamin E. Feldman hamwe n’itsinda rye ry’ubushakashatsi muri kaminuza ya Stanford basohoye inyandiko y’ubushakashatsi iherutse kwitwa "Mapping twist-tuned tunibed topology in bilayer WSe2" mu kinyamakuru "Ubumenyi." Abashakashatsi bakoze imiterere igoramye igera kuri 1,23 ° muri bilayer tungsten sicklenide kandi bakora ibipimo bya elegitoroniki yo kwifashisha bakoresheje scanning imwe ya electron transistor microscope. Bavumbuye ko hari imirongo myinshi ya topologiya hafi yiyi mpande yihariye, yerekana urukurikirane rwa kwant anomalous insulator. Mugukoresha umurima wamashanyarazi waho, banatsinze neza kwimyanya ya topologiya. Ubu bushakashatsi bukemura ikibazo cyo kugera no kwiga moiré superlattices ku mpande nto zigoretse, bitanga urubuga rukomeye rwo kurushaho gukora ubushakashatsi ku mikoranire hagati y’imikoranire ikomeye n’imiterere ya topologiya.