Cov kws tshawb nrhiav pom cov cwj pwm tshiab coj txawv txawv thaum cov khoom sib nqus tau ua kom sov. Thaum qhov kub nce, lub kiv cua sib nqus hauv cov khoom no "khov" rau hom zoo li qub, uas feem ntau tshwm sim thaum qhov ntsuas kub. Cov kws tshawb nrhiav luam tawm cov kev tshawb pom lawv cov kev tshawb pom hauv phau ceev xwm txheej physics.
Cov kws tshawb nrhiav pom qhov tshwm sim no hauv cov khoom siv neodymium. Ob peb xyoos dhau los, lawv tau piav txog lub caij no yog "tus kheej induced kiv iav". Spin iav feem ntau yog hlau hlau, piv txwv li, cov hlau atoms yog txuas ntxiv sib xyaw rau hauv ib daim phiaj tooj liab atom. Txhua tus neeg hlau atom yog zoo li cov hlau nplaum me me, lossis kiv. Cov no tau muab tso rau Spins taw tes hauv ntau cov lus qhia.
Tsis zoo li ib txwm tsom iav, uas yog txuas ntxiv sib xyaw nrog cov ntaub ntawv sib nqus, neodymium yog ib qho. Thaum tsis muaj lwm yam yeeb yam, nws qhia txog kev coj cwj pwm ntawm Vitrification nyob rau hauv Crystal. Kev sib hloov ua tus qauv ntawm kev sib hloov zoo li ib tug kauv, uas yog random thiab hloov tas li.
Hauv txoj kev tshawb fawb tshiab no, cov kws tshawb nrhiav pom tias thaum lawv rhuab neodymium los ntawm -268 ° C, nws txoj kev sib tw "ua kom khov kho ntawm cov hlau nplaum siab dua. Raws li cov khoom txias, cov kev sib hloov hloov muab kauv kauv cov qauv rov qab los.
"Hom no ntawm no khov 'feem ntau tsis tshwm sim hauv cov ntaub ntawv sib nqus," Soj ntsuam cov kws tshaj lij, kev kuaj mob tshuaj ntsuam xyuas cov xibfwb ntawm Radboud University hauv Netherlands.
Ntau dua kub nce lub zog hauv cov khib nyiab, kua, lossis roj av. Tib yam siv rau cov hlau nplaum: Thaum muaj kev kub siab dua, kev sib hloov feem ntau pib wobble.
Khejetoorians hais tias, "Kev coj tus cwj pwm ntawm neodymium peb tau pom zoo yog qhov tsis sib haum dab tsi tshwm sim '." "Qhov no yog qhov sib xyaw ua ke heev, ib yam li dej ntws mus rau hauv dej khov thaum rhuab."
Qhov kev tawm tsam no tsis muaj nyob hauv Xwm - ob peb cov ntaub ntawv tau paub coj los coj txoj hauv kev tsis ncaj ncees. Lwm qhov piv txwv zoo-paub yog rochelle ntsev: nws cov nqi ua qauv ua qauv ntawm cov khoom kub siab dua, tab sis yog faib tawm ntawm qis dua kub.
Cov lus piav qhia theoretical ntawm spin iav yog lub ntsiab ntawm 2021 Nobel nqi zog hauv physics. To taub yuav ua li cas cov iav kiv nqaj ua haujlwm tseem ceeb rau lwm qhov chaw ntawm kev tshawb fawb.
Khajetoorians hais tias, "Yog tias peb muaj peev xwm ua rau nco ntsoov qhov cwj pwm ntawm cov ntaub ntawv no, nws kuj tuaj yeem ua rau tus cwj pwm ntawm lwm cov ntaub ntawv."
Muaj peev xwm coj tus cwj pwm Eccentric muaj feem cuam tshuam nrog lub tswv yim ntawm Degenteracy: Ntau ntau lub xeev muaj tib lub zog, thiab lub kaw lus yuav ua kom ntxhov siab. Qhov ntsuas kub tuaj yeem hloov qhov xwm txheej no: tsuas yog ib qho tshwj xeeb hauv xeev, tso cai rau cov kab ke kom meej meej sau hom.
Txoj kev coj ua coj txawv txawv no yuav siv tau hauv cov ntaub ntawv tshiab lossis suav cov ntsiab lus, xws li lub hlwb zoo li xam.
Lub sij hawm Post: Lub Yim Hli 05-2022
