Abaphandi baye babona indlela entsha yokuziphatha engaqhelekanga xa imagnethi ifudunyezwa.Xa iqondo lokushisa liphakama, i-magnetic spin kule nto "iba ngumkhenkce" kwimodi ye-static, edla ngokubakho xa ukushisa kwehla.Abaphandi bapapashe iziphumo zabo kwiphephancwadi iNature Physics.
Abaphandi bafumene le nto kwizinto ze-neodymium.Kwiminyaka embalwa edlulileyo, bachaza le element njenge "self induced spin glass".I-spin glass idla ngokuba yi-alloy yentsimbi, umzekelo, ii-athomu zentsimbi zixutywa ngokungacwangciswanga kwigridi yee-athomu zobhedu.Iathom yentsimbi nganye ifana nemagnethi encinane, okanye ukusonta.Ezi spins zibekwe ngokungacwangciswanga zikhomba kumacala ahlukeneyo.
Ngokungafaniyo neeglasi zokusonta eziqhelekileyo, ezixutywe ngokungakhethiyo kunye nemathiriyeli yamagnetic, i-neodymium yinto.Ngokungabikho kwayo nayiphi na enye into, ibonisa ukuziphatha kwe-vitrification kwifom ye-crystal.Ukujikeleza kwenza ipateni yokujikeleza okufana ne-spiral, ezenzekelayo kwaye iguquka rhoqo.
Kolu phononongo olutsha, abaphandi bafumanise ukuba xa befudumeza i-neodymium ukusuka -268 ° C ukuya -265 ° C, i-spin yayo "ikhenkceke" ibe yipateni eqinileyo, yenza umazibuthe kubushushu obuphezulu.Njengoko imathiriyeli iphola, ipateni ejikelezayo ejikelezayo iyabuya.
UAlexander khajetoorians, unjingalwazi wemikroskopu kwiYunivesithi yaseRadboud eNetherlands wathi: “Le ndlela ‘yokuba ngumkhenkce’ ayisoloko ibakho kwizinto ezisebenza kumagnethi.
Amaqondo obushushu aphezulu anyusa amandla kwizinto eziqinileyo, kulwelo, okanye kwiigesi.Oku kuyasebenza nakwimagnethi: kumaqondo obushushu aphezulu, ukujikeleza ngokuqhelekileyo kuqala ukugungqa.
Khajetoorians bathi, "indlela yokuziphatha kwemagnethi ye-neodymium esiyibonileyo ichasene nokwenzekayo" ngokwesiqhelo."Oku kuchasene nengqiqo, njengamanzi ajika abe ngumkhenkce xa eshushu."
Le nto ye-counterintuitive ayiqhelekanga kwindalo - izinto ezimbalwa ziyaziwa ukuba ziziphatha ngendlela engafanelekanga.Omnye umzekelo owaziwayo yi-Rochelle ityuwa: iintlawulo zayo zenza iphethini eyaliweyo kumaqondo okushisa aphezulu, kodwa isasazwa ngokungaqhelekanga kumaqondo aphantsi.
Inkcazo yethiyori entsonkothileyo yeglasi ejikelezayo ngumxholo weBhaso leNobel kwifiziksi lika-2021.Ukuqonda indlela ezi glasi zisebenza ngayo kubalulekile nakwezinye iindawo zesayensi.
I-Khajetoorians yathi, "ukuba ekugqibeleni sinokulinganisa indlela yokuziphatha kwezi zinto, inokuchaphazela indlela yokuziphatha kwenani elikhulu lezinye izinto."
Ukuziphatha okunokubakho kwe-eccentric kunxulumene nombono wokuwohloka: amazwe amaninzi awohlukeneyo anamandla afanayo, kwaye inkqubo iyaphazamiseka.Ubushushu bunokutshintsha le meko: kuphela imeko ethile ekhoyo, evumela inkqubo ukuba ingene ngokucacileyo kwindlela.
Oku kuziphatha kungaqhelekanga kunokusetyenziswa kugcino olutsha lolwazi okanye iikhonsepthi zekhompuyutha, ezinje ngengqondo efana nekhompyutha.
Ixesha lokuposa: Aug-05-2022
