Ochita kafukufuku adawona chinthu chatsopano chachilendo pamene maginito amatenthedwa.Kutentha kukakwera, maginito ozungulira m'zinthuzi "amaundana" kukhala static mode, yomwe nthawi zambiri imapezeka pamene kutentha kwatsika.Ofufuzawo adafalitsa zomwe adapeza m'magazini yotchedwa Nature Physics.
Ofufuza anapeza chodabwitsa ichi mu zipangizo za neodymium.Zaka zingapo zapitazo, adafotokoza chinthu ichi ngati "galasi yozungulira yodzipangira".Galasi yozungulira nthawi zambiri imakhala aloyi yachitsulo, mwachitsanzo, maatomu achitsulo amasakanikirana mosintha mu gululi la maatomu amkuwa.Atomu iliyonse yachitsulo ili ngati maginito yaing'ono, kapena kuti spin.Ma spins awa oyikidwa mwachisawawa amaloza mbali zosiyanasiyana.
Mosiyana ndi magalasi ozungulira achikhalidwe, omwe amasakanikirana mwachisawawa ndi maginito, neodymium ndi chinthu.Popanda chinthu china chilichonse, zimasonyeza khalidwe la vitrification mu mawonekedwe a kristalo.Kuzungulira kumapanga njira yozungulira ngati yozungulira, yomwe imakhala yachisawawa komanso yosinthasintha.
Mu kafukufuku watsopanoyu, ofufuza adapeza kuti akatenthetsa neodymium kuchokera -268 ° C mpaka -265 ° C, imazungulira "chisanu" kukhala cholimba, ndikupanga maginito pa kutentha kwakukulu.Zinthu zikazizira, mawonekedwe ozungulira ozungulira amabwerera.
“Kuzizira” kumeneku kaŵirikaŵiri sikumakhala ndi maginito,” anatero Alexander khajetoorians, pulofesa wofufuza maikulosikopu pa yunivesite ya Radboud ku Netherlands.
Kutentha kwambiri kumawonjezera mphamvu mu zolimba, zamadzimadzi, kapena mpweya.Zomwezo zimagwiranso ntchito kwa maginito: pa kutentha kwakukulu, kasinthasintha kawirikawiri kumayamba kugwedezeka.
Khajetoorians adati, "khalidwe la maginito la neodymium lomwe tidawona limatsutsana ndi zomwe zimachitika" nthawi zambiri.""Izi ndizovuta kwambiri, monga momwe madzi amasinthira kukhala ayezi akatenthedwa."
Chochitika chotsutsa ichi sichidziwika mwachibadwa - zipangizo zochepa zomwe zimadziwika kuti zimakhala zolakwika.Chitsanzo china chodziwika bwino ndi mchere wa Rochelle: zolipiritsa zake zimapanga chitsanzo cholamulidwa pa kutentha kwakukulu, koma zimagawidwa mwachisawawa pa kutentha kochepa.
Kufotokozera movutikira kwa magalasi ozungulira ndi mutu wa 2021 Nobel Prize mu physics.Kumvetsetsa momwe magalasi ozungulirawa amagwirira ntchito ndikofunikiranso pazinthu zina zasayansi.
Khajetoorians adati, "ngati titha kutengera machitidwe azinthu izi, zitha kusokonezanso machitidwe azinthu zina zambiri."
Khalidwe lotheka lodziyimira pawokha limakhudzana ndi lingaliro lakuwonongeka: maiko ambiri ali ndi mphamvu zofanana, ndipo dongosolo limakhumudwitsidwa.Kutentha kungasinthe izi: dziko lokhalokha liripo, lolola kuti dongosololi lilowemo momveka bwino.
Khalidwe lachilendoli litha kugwiritsidwa ntchito posungira zidziwitso zatsopano kapena malingaliro apakompyuta, monga ubongo ngati kompyuta.
Nthawi yotumiza: Aug-05-2022
