Izakhiwo ezincinci ze-magnetic vortex, i-skyrmions (ebizwa ngokuba yi-British theoretical physicist uTony Skyrme, owaxela kwangaphambili esi sakhiwo kwi-60s yekhulu leminyaka elidlulileyo) uthembisa ukuba sisiseko sememori yamagnetic yekamva. Ezi ziindlela zemagnethi ezizinzileyo ezinokuthi zibe nemincili kwiifilimu zemagnethi kwaye ke imeko yazo inokufundwa. Kule meko, ukubhala kunye nokufunda kwenzeka usebenzisa i-spin currents - ngokudlulisa i-angular momentum ye-electron spin. Oku kuthetha ukuba ukubhala nokufunda kunokuqhutywa ngemisinga ephantsi kakhulu. Kwakhona, ukuxhasa i-vortex yamagnetic ayifuni ukunikezelwa kwamandla rhoqo, okukhokelela kwimemori engaguqukiyo yezoqoqosho.
Kwiminyaka embalwa edlulileyo, izazinzulu kwaye bafunda ngokusondeleyo ukuziphatha kwe-skyrmions kwaye, ngokungekho ngqiqweni, bakholelwa ukuba ezi zakhiwo ziya kunceda ukunyusa ngokuphawulekayo ukuxinana kokurekhoda. Ngaphezu koko, kutshanje izazinzulu zaseBritani nezaseMelika , indlela enokwenzeka ngayo ukwandisa ngokuphawulekayo ubuninzi bokurekhoda usebenzisa i-skyrmions ngaphandle kobunzima obuthile ngendlela yokunciphisa ububanzi bezakhiwo ze-vortex, ezinokukhokelela ekuphunyezweni ngokukhawuleza kweengcamango zesayensi kwimveliso yorhwebo.
Endaweni yobhalo lwemveli yokubini, apho u-1 kunye no-0 bekuya kuba sisibhakabhaka okanye singabikho sibhakabhaka, izazinzulu ezivela kwiDyunivesithi yaseBirmingham, eBristol nakwiYunivesithi yaseColorado Boulder ziye zanikezela ngesakhiwo esidityanisiweyo se-vortex abasibiza ngokuba βyibhegi yesibhakabhaka.β Ngokungathandabuzekiyo, "ingxowa" ye-skyrmions ingcono kune-skyrmion enye. Inani le-skyrmions engxoweni ingaba nayiphi na, eya kukuvumela ukuba unikeze amaxabiso angaphezulu kwe-0 okanye i-1. Le yindlela ethe ngqo yokwandisa ukuxinana kokurekhoda. Ukuya kumlinganiselo othile, oku kuthelekiseka nokubhala amanqanaba amaninzi kwiseli ye-NAND flash. Akukho mfuneko yokukhumbuza kwakhona ukuba imarike ye-flash drive yaqala njani ukukhula ngokukhawuleza emva kokuqala kokuveliswa kobuninzi bememori ye-NAND TLC ngokubhala amasuntswana amathathu kwiseli nganye.
Iingcali zenzululwazi ezivela eNgilani zibonise ukudalwa kwesakhiwo "sesikhwama se-skyrmions" ngendlela yemodeli engabonakaliyo kwaye yaphinda yavelisa i-phenomenon kwiprogram ye-simulator. Oogxa babo baseMelika baphinda baphinda baphinda baphinda basebenza, nangona basebenzisa iikristale ezingamanzi endaweni yezakhiwo zemagneti ukuzisa izakhiwo ze-vortex. Iikristale zolwelo ziyaziwa ukuba zilawulwa yimagnethi, ezivumela ukuba zisetyenziselwe imifuniselo eyenziwe ngeqonga ukuze kubonwe okwenzekayo kumagnethi. Silindele ukuba iimvavanyo zidluliselwe kwiifilimu zemagnethi.
umthombo: 3dnews.ru