Iqela labaphandi abavela kwi-Paul Scherrer Institute (Villigen, Switzerland) kunye ne-ETH Zurich baye baphanda kwaye baqinisekisa ukusebenza kwento enomdla ye-magnetism kwinqanaba le-athomu. Ukuziphatha kwe-atypical yamagnetic kwinqanaba lamaqela e-nanometer kwaxelwa kwangaphambili kwiminyaka eyi-60 edlulileyo yi-Soviet kunye ne-American physicist u-Igor Ekhielevich Dzyaloshinsky. Abaphandi baseSwitzerland bakwazi ukwenza izakhiwo ezinjalo kwaye ngoku baxela kwangaphambili ikamva eliqaqambileyo kubo kungekhona nje njengezisombululo zokugcina, kodwa kwakhona, ngokungaqhelekanga kakhulu, njengokutshintshwa kwee-transistors kwiiprosesa ze-nanoscale.
Ehlabathini lethu, inaliti yekhampasi ihlala ikhomba emantla, okwenza kube lula ukufumana indlela eya empuma nasentshona. Iimagnethi zepolarities ezahlukeneyo ziyatsala, kwaye iimagnethi ze-unipolar ziyagxotha. Kwi-microcosm kwisikali seeathomu ezininzi, phantsi kweemeko ezithile, iinkqubo zamagnetic zenzeka ngokwahlukileyo. Kuluhlu olufutshane lwentsebenziswano yee-athomu ze-cobalt, umzekelo, imimandla engabamelwane yemagnetization ecaleni kwee-athomu ezijoliswe kumntla zijoliswe entshona. Ukuba i-orientation itshintshela emazantsi, ke iiathom ezikummandla okufuphi ziya kutshintsha ukuqhelaniswa nomagnetization ukuya ngasempuma. Eyona nto ibalulekileyo kukuba iiathom zolawulo kunye neeathom zekhoboka zibekwe kwinqwelomoya enye. Ngaphambili, isiphumo esifanayo sabonwa kuphela kwizakhiwo zeathom ezibekwe ngokuthe nkqo (enye ngaphezu kwenye). Indawo yolawulo kunye neendawo ezilawulwayo kwinqwelomoya enye ivula indlela yoyilo lwe-computing kunye nezakhiwo zokugcina.
Ulwalathiso lwemagneti yolawulo lolawulo lunokutshintshwa nokuba yintsimi ye-electromagnetic okanye ngokusebenzisa yangoku. Iitransistors zilawulwa ngokusebenzisa imigaqo efanayo. Kwimeko ye-nanomagnets kuphela apho ulwakhiwo lunokufumana impembelelo yophuhliso zombini ngokwemveliso kunye nokugcinwa kokusetyenziswa kunye nokunciphisa indawo yezisombululo (ukunciphisa ubungakanani benkqubo yobugcisa). Kule meko, iivalve ziya kusebenza kwiindawo ezidibeneyo zemagnetization, ezilawulwa ngokutshintsha i-magnetization yeendawo eziphambili.
I-phenomenon ye-magnetization edibeneyo ichongiwe kuyilo olukhethekileyo. Ukwenza oku, i-1,6 nm engqingqwa ye-cobalt yayijikelezwe phezulu kunye nezantsi kunye ne-substrates: iplatinam ezantsi kunye ne-aluminium oxide phezulu (engaboniswa emfanekisweni). Ngaphandle koku, ukudityaniswa komntla-ntshona kunye nomzantsi-mpuma wemagneti akuzange kwenzeke. Kwakhona, into efunyenweyo inokukhokelela ekuveleni kwe-antiferromagnets eyenziwe, enokuthi ivule indlela yobuchwepheshe obutsha bokurekhodwa kwedatha.
umthombo: 3dnews.ru