Cov kws tshawb fawb tau ua ib kauj ruam mus rau kev tsim cov khoom siv muaj zog uas sivsib nqus them los ntawm kev tsim thawj qhov peb-seem qauv ntawm cov khoom siv hu ua spin-ice.
Cov khoom siv dej khov uas tig mus los tsis tshua muaj vim lawv muaj qhov hu ua qhov tsis zoo uas ua haujlwm zoo li ib lub ncej ntawm lub hlau nplaum.
Cov hlau nplaum ib tug ncej no, tseem hu ua magnetic monopoles, tsis muaj nyob rau hauv xwm; thaum txhua yam khoom siv magnetic raug txiav ua ob nws yuav ib txwm tsim ib lub hlau nplaum tshiab nrog lub ncej sab qaum teb thiab sab qab teb.
Tau ntau xyoo lawm cov kws tshawb fawb tau nrhiav deb thiab dav rau cov pov thawj ntawm qhov tshwm sim ntuj tsimsib nqus monopoles nyob rau hauv kev cia siab tias thaum kawg yuav muab cov zog tseem ceeb ntawm xwm txheej tso ua ke rau hauv ib qho kev xav ntawm txhua yam, muab tag nrho cov physics tso rau hauv ib lub ru tsev.
Txawm li cas los xij, nyob rau xyoo tas los no cov kws kho mob tau tswj hwm los tsim cov qauv dag ntawm lub monopole sib nqus los ntawm kev tsim cov khoom siv ob-seem spin-ice.
Txog niaj hnub no cov qauv no tau ua tiav qhov ua pov thawj tias muaj lub zog sib nqus monopole, tab sis nws tsis yooj yim sua kom tau txais tib lub physics thaum cov khoom siv raug txwv rau ib lub dav hlau. Tseeb tiag, nws yog qhov geometry peb-seem ntawm lub spin-ice lattice uas yog qhov tseem ceeb rau nws lub peev xwm tshwj xeeb los tsim cov qauv me me uas ua raws lisib nquscov monopoles.
Hauv kev tshawb fawb tshiab uas tau luam tawm hnub no hauv Nature Communications, ib pab neeg uas coj los ntawm cov kws tshawb fawb ntawm Cardiff University tau tsim thawj 3D replica ntawm cov khoom siv spin-ice siv hom kev luam ntawv thiab ua tiav 3D zoo heev.
Cov pab pawg neeg hais tias cov thev naus laus zis luam tawm 3D tau tso cai rau lawv los kho cov qauv ntawm cov dej khov dag, uas txhais tau tias lawv tuaj yeem tswj hwm txoj kev uas cov monopoles sib nqus tau tsim thiab txav mus los hauv cov kab ke.
Muaj peev xwm tswj cov hlau nplaum me me monopole hauv 3D tuaj yeem qhib ntau daim ntawv thov uas lawv hais, los ntawm kev khaws cia hauv computer kom zoo dua mus rau kev tsim cov tes hauj lwm suav 3D uas ua raws li cov qauv neural ntawm lub hlwb tib neeg.
"Tau ntau tshaj 10 xyoo cov kws tshawb fawb tau tsim thiab kawm txog cov dej khov uas muaj ob sab. Los ntawm kev nthuav cov kab ke no mus rau peb sab, peb tau txais kev sawv cev tseeb dua ntawm cov dej khov monopole physics thiab muaj peev xwm kawm txog kev cuam tshuam ntawm cov nto," tus kws sau ntawv Dr. Sam Ladak los ntawm Cardiff University's School of Physics and Astronomy hais.
"Qhov no yog thawj zaug uas leej twg tau tsim tau ib qho 3D replica ntawm lub spin-ice, los ntawm kev tsim, ntawm nanoscale."
Cov dej khov ua los ntawm cov khoom siv dag tau tsim los ntawm kev siv cov txheej txheem 3D nanofabrication uas cov nanowires me me tau muab tso rau hauv plaub txheej hauv cov qauv lattice, uas nws tus kheej ntsuas tsawg dua li tib neeg cov plaub hau qhov dav tag nrho.
Ib hom microscopy tshwj xeeb hu ua magnetic force microscopy, uas rhiab rau magnetism, tau siv los pom cov nqi magnetic uas muaj nyob rau ntawm lub cuab yeej, uas tso cai rau pab pawg neeg taug qab kev txav mus los ntawm cov hlau nplaum ib-ncej hla cov qauv 3D.
"Peb txoj haujlwm tseem ceeb heev vim nws qhia tau tias cov thev naus laus zis luam ntawv 3D nanoscale siv tau los ua cov ntaub ntawv uas feem ntau yog tsim los ntawm chemistry," Dr. Ladak hais ntxiv.
Thaum kawg, txoj haujlwm no tuaj yeem muab ib txoj hauv kev los tsim cov khoom siv sib nqus tshiab, qhov twg cov khoom siv tau kho los ntawm kev tswj hwm 3D geometry ntawm lub lattice dag.
"Cov khoom siv khaws cia hlau nplaum, xws li lub hard disk drive lossis cov khoom siv khaws cia hlau nplaum random access, yog lwm qhov chaw uas yuav raug cuam tshuam loj heev los ntawm qhov kev tawg tshiab no. Raws li cov khoom siv tam sim no tsuas yog siv ob ntawm peb qhov ntev muaj, qhov no txwv cov ntaub ntawv uas tuaj yeem khaws cia. Txij li thaum cov monopoles tuaj yeem txav mus los ncig lub lattice 3D siv lub teb hlau nplaum nws yuav ua tau los tsim cov khoom siv khaws cia 3D tiag tiag raws li tus nqi hlau nplaum."
Lub sijhawm tshaj tawm: Tsib Hlis-28-2021