Ososayensi baseNyuvesi yaseRice benze ubuchwepheshe benkumbulo yesimo esiqinile obuvumela ukugcinwa kokuminyana okuphezulu ngezigameko ezincane zamaphutha ekhompyutha.

Izinkumbulo zisekelwei-tantalum oxide, isivikelo esivamile kuma-electronics. Ukusebenzisa i-voltage kusandwich engu-250-nanometer-thick ye-graphene, tantalum, nanoporousi-tantalumi-oxide neplatinamu kudala izingcezu ezingalungiseka lapho kuhlangana khona izendlalelo. Lawula ama-voltage ashintsha ama-ion womoya-mpilo kanye nezikhala shintsha amabhithi phakathi kwawo kanye neziro.

Ukutholwa ngelebhu yeRice kasokhemisi uJames Tour kungavumela izinkumbulo ze-crossbar ezigcina amagigabhithi angu-162, ephakeme kakhulu kunezinye izinhlelo zememori ezisekelwe ku-oxide eziphenywa ososayensi. (Amabhithi ayisishiyagalombili alingana nebhayithi eyodwa; iyunithi engu-162-gigabit ingagcina ulwazi olungaba ngamagigabhayithi angama-20.)

Imininingwane ivela ku-inthanethi kujenali ye-American Chemical SocietyIzincwadi zeNano.

Njengokutholwa kwangaphambilini kwelebhu ye-Tour yezinkumbulo ze-silicon oxide, amadivayisi amasha adinga ama-electrode amabili kuphela isekethe ngayinye, okuwenza abe lula kunezinkumbulo ze-flash zanamuhla ezisebenzisa ezintathu. "Kodwa lena indlela entsha yokwenza inkumbulo yekhompiyutha eqinile, engaguquki," kusho u-Tour.

Izinkumbulo ezingaguquki zibamba idatha yazo ngisho nalapho amandla ecishiwe, ngokungafani nezinkumbulo zekhompuyutha eziguqukayo zokufinyelela okungahleliwe ezilahlekelwa okuqukethwe kwazo lapho umshini uvaliwe.

Ama-memory chips anamuhla anezidingo eziningi: Kufanele afunde futhi abhale idatha ngesivinini esikhulu futhi abambe ngangokunokwenzeka. Kufanele futhi ziqine futhi zibonise ukugcinwa okuhle kwaleyo datha kuyilapho kusetshenziswa amandla amancane.

U-Tour uthe umklamo omusha we-Rice, odinga amandla angaphansi ngokuphindwe izikhathi eziyi-100 kunamadivayisi amanje, unamandla okushaya wonke amamaki.

“Lokhui-tantaluminkumbulo isuselwe ezinhlelweni ezinamatheminali amabili, ngakho-ke konke kusethelwe izitaki zememori engu-3-D,” kusho yena. “Futhi ayidingi ngisho nama-diode noma izikhethi, okuyenza ibe enye yezinkumbulo ezilula kakhulu zokwakha. Lokhu kuzoba umncintiswano wangempela wezidingo zememori ezikhulayo ekugcinweni kwevidiyo enencazelo ephezulu kanye nezinhlelo zeseva. "

Isakhiwo esinezingqimba siqukethe i-tantalum, i-nanoporous tantalum oxide kanye ne-multilayer graphene phakathi kwama-electrode amabili eplatinamu. Ekwenzeni izinto, abacwaningi bathola ukuthi i-tantalum oxide ilahlekelwa kancane kancane ama-ion oksijini, ishintsha isuka ku-oksijini ecebile, i-nanoporous semiconductor phezulu iye impofu komoya-mpilo phansi. Lapho umoya-mpilo uphela khona ngokuphelele, uba i-tantalum ehlanzekile, insimbi.