Izakhiwo ezincane kunazo zonke ze-magnetic vortex, ama-skyrmions (aqanjwe nge-British theory physicist uTony Skyrme, owabikezela lesi sakhiwo kuma-60s wekhulu leminyaka elidlule) athembisa ukuba yisisekelo senkumbulo kazibuthe yesikhathi esizayo. Lokhu ukwakheka kazibuthe okuzinzile kwe-topologically okungajabulisa kumafilimu kazibuthe bese isimo sawo singafundwa. Kulesi simo, ukubhala nokufunda kwenzeka kusetshenziswa ama-spin currents - ngokudlulisela umfutho we-angular we-electron spin. Lokhu kusho ukuthi ukubhala nokufunda kungenziwa ngemisinga ephansi kakhulu. Futhi, ukusekela i-vortex kazibuthe akudingi ukunikezwa kwamandla okungapheli, okuholela enkumbulo yezomnotho engaguquki.
Eminyakeni embalwa eyedlule, ososayensi baye baphumelela futhi bafunda kabanzi ngokuziphatha kwama-skyrmions futhi, hhayi ngokungafanele, bakholelwa ukuthi lezi zakhiwo zizosiza ukukhulisa ngokuphawulekayo ukuminyana kokurekhoda kazibuthe. Ngaphezu kwalokho, muva nje ososayensi baseBrithani nabaseMelika , ukuthi kungenzeka kanjani ukwandisa ngokuphawulekayo ukuminyana kokurekhoda usebenzisa ama-skyrmions ngaphandle kobunzima obuthile ngendlela yokunciphisa ububanzi bezakhiwo ze-vortex, okungaholela ekuhunyushweni okusheshayo kwemibono yesayensi ibe umkhiqizo wezohwebo.
Esikhundleni se-notation yendabuko kanambambili, lapho u-1 no-0 kungaba i-skyrmion noma engekho i-skyrmion, ososayensi baseNyuvesi yase-Birmingham, e-Bristol nase-University of Colorado Boulder bethule isakhiwo se-vortex esihlanganisiwe abasibiza ngokuthi βisikhwama se-skyrmion.β Ngokungangabazeki, "isikhwama" se-skyrmions singcono kune-skyrmion eyodwa. Inombolo yama-skyrmions esikhwameni ingaba yinoma yikuphi, okuzokuvumela ukuthi unikeze amanani angaphezu kuka-0 noma 1. Lena indlela eqondile yokwandisa ukuminyana kokurekhoda. Ngokwezinga elithile, lokhu kufaniswa nokubhala okunamazinga amaningi neseli ye-NAND flash. Asikho isidingo sokukhumbuza futhi ukuthi imakethe ye-flash drive yaqala kanjani ukukhula ngokushesha ngemuva kokuqala kokukhiqizwa ngobuningi benkumbulo ye-NAND TLC ngokubhala amabhithi amathathu ngeseli ngalinye.
Ososayensi baseNgilandi bethule ukudalwa kwesakhiwo "sesikhwama se-skyrmions" ngendlela yemodeli engabonakali futhi baphinde bakhiqiza lo mkhuba ohlelweni lokulingisa. Ozakwabo baseMelika baphinde bakhiqiza lo mkhuba, nakuba basebenzisa amakristalu awuketshezi kunezakhiwo kazibuthe ukuze baqalise izakhiwo ze-vortex. Amakristalu oketshezi aziwa ngokuthi alawulwa inkambu kazibuthe, ewavumela ukuthi asetshenziselwe ukuhlola okuhleliwe ukuze abone ngeso lengqondo izenzakalo kazibuthe. Silindele ukuhlolwa ukuthi kudluliselwe kumafilimu kazibuthe.
Source: 3dnews.ru