Asayansi ku Rice University apanga ukadaulo wokhazikika wa kukumbukira zomwe zimalola kusungirako kwakanthawi kochepa komwe kumakhala ndi zolakwika zochepa zamakompyuta.

Zokumbukira zimakhazikitsidwatantalum oxide, insulator wamba mu zamagetsi.Kugwiritsa ntchito magetsi ku sangweji ya 250-nanometer-thick of graphene, tantalum, nanoporoustantalumoxide ndi platinamu zimapanga zingwe zoyankhulirana zomwe zigawozo zimakumana.Kuwongolera ma voltages omwe amasuntha ma ion okosijeni ndi malo osagwira ntchito amasintha ma bits pakati pa amodzi ndi ziro.

Kupezedwa ndi labu ya Rice ya katswiri wamankhwala James Tour kumatha kulola kukumbukira zinthu zingapo zomwe zimasunga mpaka magigabiti 162, apamwamba kwambiri kuposa makina ena okumbukira oksidi omwe akufufuzidwa ndi asayansi.(Mabiti asanu ndi atatu ofanana ndi baiti imodzi; gawo la 162-gigabit lingasunge pafupifupi magigabytes 20 a chidziwitso.)

Zambiri zimawonekera pa intaneti mu magazini ya American Chemical SocietyNano Letters.

Monga momwe Tour lab idatulukira kale zokumbukira za silicon oxide, zida zatsopanozi zimangofunika maelekitirodi awiri pagawo lililonse, kuzipangitsa kukhala zosavuta kuposa kukumbukira kwamasiku ano komwe kumagwiritsa ntchito katatu."Koma iyi ndi njira yatsopano yopangira kukumbukira kwapakompyuta kopitilira muyeso, kosasinthika," adatero Tour.

Zokumbukira zosasinthika zimasunga deta yawo ngakhale mphamvu itazimitsidwa, mosiyana ndi kukumbukira kosasunthika kwa makompyuta komwe kumatayika zomwe zili mkati mwake pamene makina atsekedwa.

Tchipisi zamakono zamakono zili ndi zofunikira zambiri: Ayenera kuwerenga ndi kulemba deta pa liwiro lalikulu ndikugwira momwe angathere.Ayeneranso kukhala olimba ndikuwonetsa kusunga bwino detayo pogwiritsa ntchito mphamvu zochepa.

Tour adati mapangidwe atsopano a Rice, omwe amafunikira mphamvu zochepa kuwirikiza ka 100 kuposa zida zamakono, ali ndi kuthekera kopambana.

“IzitantalumMemory imakhazikika pamakina amitundu iwiri, chifukwa chake zonse zakonzedwa kuti zisungidwe zokumbukira za 3-D, "adatero."Ndipo sichifunikira ngakhale ma diode kapena osankha, kupangitsa kuti ikhale imodzi mwazosavuta kukumbukira kupanga.Uwu ukhala mpikisano weniweni pakukula kwa kukumbukira komwe kukukulirakulira pakusungidwa kwamakanema apamwamba komanso masanjidwe a seva. ”

Kapangidwe kagawo kakang'ono kamakhala ndi tantalum, nanoporous tantalum oxide ndi multilayer graphene pakati pa ma elekitirodi awiri a platinamu.Popanga zinthuzo, ofufuzawo adapeza kuti tantalum oxide imataya ma ion okosijeni pang'onopang'ono, ikusintha kuchokera ku semiconductor yokhala ndi okosijeni, nanoporous semiconductor yomwe ili pamwamba mpaka yopanda mpweya pansi.Kumene mpweya umasowa kotheratu, umakhala tantalum wangwiro, chitsulo.