Impumelelo Ocwaningweni Lwezinto Ezinezinhlangothi Ezimbili Olwembulwe Isayensi!
Ama-Moiré superlattices ayizakhiwo zezikhathi ezithile ezakhiwe ukugudluka okuncane phakathi kwamalathini anezinhlangothi ezimbili noma ngaphezulu. Kulawa ma-moiré superlattices, ukuziphatha kwe-elekthronikhi kungathonywa kakhulu, kubangele izimo ezingajwayelekile njengama-insulators e-quantum Hall. Kodwa-ke, ukuzuza ama-moiré superlattices kuma-engeli amancane okusonta kuhlala kuyinselele ezintweni ezithile. Lokhu kubalulekile ekuqondeni nasekusebenziseni imiphumela yokuhlobana kwama-electron, njengoba ukuhlobana kwama-electron kuvame ukubonakala ngokugqama kakhulu kuma-engeli amancane okusonta. Kodwa-ke, ngenxa yobunzima bokuhlola, ucwaningo lokuhlobana okuqinile kulezi zinhlelo lugxile kakhulu kuma-engeli athile okusonta noma ukuhlanekezela okukhulu kwe-interlayer, kuntuleka ukulawula okuhlelekile nophenyo.
Ebhekana nale nselelo, uSolwazi Benjamin E. Feldman kanye nethimba lakhe labacwaningi eNyuvesi yaseStanford bashicilele iphepha lokucwaninga lakamuva elinesihloko esithi "Mapping twist-tuned multiband topology in bilayer WSe2" kujenali "Science." Ososayensi badale isakhiwo esisontekile esingaba ngu-1.23° ku-bilayer tungsten diselenide futhi benza izilinganiso zasendaweni zokucindezelwa kwe-elekthronikhi besebenzisa isibonakhulu se-single-electron transistor. Bathole ukuba khona kwamabhendi amaningi e-topological eduze kwale engeli ethize yokusonta, ebonisa uchungechunge lwezivikeli zehholo eziyi-quantum anomalous. Ngokusebenzisa inkambu yendawo kagesi, baphinde bafaka ngempumelelo uguquko lwesigaba se-topological quantum. Lolu cwaningo lubhekana nenselele yokuzuza nokufunda ama-moiré superlattices kuma-engeli amancane okusonta, okuhlinzeka ngenkundla enamandla yokuhlola okwengeziwe kokuhlangana phakathi kokuhlobana okuqinile nezici ze-topological.