Cov kws tshawb fawb ntawm CRANN (Lub Chaw rau Kev Tshawb Fawb ntawm Adaptive Nanostructures thiab Nanodevices), thiab Tsev Kawm Ntawv ntawm Physics ntawm Trinity College Dublin, hnub no tau tshaj tawm tiaskhoom siv hlau nplaumtsim nyob rau hauv Center qhia qhov ceev tshaj magnetic switching puas tau sau tseg.
Pab neeg siv femtosecond laser systems hauv Photonics Research Laboratory ntawm CRANN los hloov thiab rov hloov cov kev taw qhia sib nqus ntawm lawv cov khoom hauv trillionths ntawm ib thib ob, rau lub sij hawm sai dua li cov ntaub ntawv dhau los, thiab ib puas npaug sai dua lub moos ceev ntawm tus kheej lub computer.
Qhov kev tshawb pom no qhia txog lub peev xwm ntawm cov khoom siv rau lub cim tshiab ntawm lub zog siv hluav taws xob ultra-ceev ceev thiab cov ntaub ntawv khaws cia.
Cov kws tshawb fawb tau ua tiav lawv qhov kev hloov pauv tsis tau pom dua hauv cov hlau hu ua MRG, thawj zaug los ntawm pab pawg hauv xyoo 2014 los ntawm manganese, ruthenium thiab gallium.Hauv kev sim, pab pawg ntaus cov yeeb yaj kiab ntawm MRG nrog tawg ntawm lub teeb liab laser, xa megawatts ntawm lub zog hauv tsawg dua li ib lab thib ob.
Lub tshav kub hloov pauv hloov cov kev taw qhia sib nqus ntawm MRG.Nws yuav siv sij hawm ib qho tsis txaus ntseeg ceev kaum ntawm ib picosecond kom ua tiav qhov kev hloov pauv thawj zaug (1 ps = ib trillionth ntawm ib thib ob).Tab sis, qhov tseem ceeb tshaj, pab pawg tau pom tias lawv tuaj yeem hloov qhov kev taw qhia rov qab 10 trillionths ntawm ib thib ob tom qab.Qhov no yog qhov ceev tshaj plaws rov hloov ntawm cov hlau nplaum txoj kev taw qhia puas tau pom.
Lawv cov txiaj ntsig tau tshaj tawm lub lim tiam no hauv phau ntawv xov xwm physics, Lub Cev Saib Xyuas Cov Ntawv.
Qhov kev tshawb pom tuaj yeem qhib txoj hauv kev tshiab rau kev siv computer tshiab thiab cov ntaub ntawv thev naus laus zis, muab qhov tseem ceeb ntawmkhoom siv hlau nplaums hauv kev lag luam no.Muab zais rau hauv ntau ntawm peb cov khoom siv hluav taws xob, nrog rau hauv cov ntaub ntawv loj loj hauv plawv hauv internet, cov ntaub ntawv sib nqus nyeem thiab khaws cov ntaub ntawv.Cov ntaub ntawv tam sim no tawg tsim cov ntaub ntawv ntau dua thiab siv zog ntau dua li yav dhau los.Nrhiav kev siv hluav taws xob tshiab los tswj cov ntaub ntawv, thiab cov ntaub ntawv kom phim, yog qhov kev tshawb fawb thoob ntiaj teb ua ntej.
Tus yuam sij rau pawg Trinity txoj kev vam meej yog lawv lub peev xwm ua tiav qhov kev hloov pauv sai sai yam tsis muaj qhov sib nqus.Ib txwm hloov pauv ntawm cov hlau nplaum siv lwm cov hlau nplaum, uas tuaj ntawm tus nqi ntawm ob lub zog thiab lub sijhawm.Nrog MRG qhov kev hloov pauv tau ua tiav nrog lub ntsuas cua sov, ua kom siv cov khoom sib txawv nrog lub teeb.
Cov kws tshawb fawb Trinity Jean Besbas thiab Karsten Rode tham txog ib txoj hauv kev ntawm kev tshawb fawb:
“Cov khoom siv hlau nplaums inherently muaj lub cim xeeb uas yuav siv tau rau logic.Txog tam sim no, hloov los ntawm ib lub xeev magnetic 'logical 0' mus rau lwm qhov 'logical 1' tau dhau los ua lub zog tshaib plab thiab qeeb heev.Peb qhov kev tshawb fawb hais txog kev ceev los ntawm kev qhia tias peb tuaj yeem hloov MRG los ntawm ib lub xeev mus rau lwm qhov hauv 0.1 picoseconds thiab qhov tseem ceeb uas qhov hloov thib ob tuaj yeem ua raws li 10 picoseconds tom qab, sib xws rau qhov ua haujlwm zaus ntawm ~ 100 gigahertz - nrawm dua li txhua yam tau pom ua ntej.
"Qhov kev tshawb pom qhia txog qhov muaj peev xwm tshwj xeeb ntawm peb MRG kom ua tau zoo ob peb lub teeb thiab tig kom peb tuaj yeem tswj cov hlau nplaum nrog lub teeb thiab lub teeb nrog cov hlau nplaum ntawm lub sijhawm tam sim no tsis tuaj yeem ua tiav."
Kev tawm tswv yim txog nws pab neeg ua haujlwm, xibfwb Michael Coey, Trinity's School of Physics thiab CRANN, tau hais tias, "Nyob rau xyoo 2014 thaum kuv pab neeg thiab kuv tau tshaj tawm thawj zaug tias peb tau tsim cov hlau alloy tshiab ntawm manganese, ruthenium thiab gallium, hu ua MRG, peb yeej tsis tau. xav tias cov khoom muaj qhov zoo kawg li magneto-optical peev xwm.
"Qhov kev ua qauv qhia no yuav ua rau lub tswv yim tshiab ntawm cov cuab yeej siv raws li lub teeb thiab cov hlau nplaum uas tuaj yeem tau txais txiaj ntsig los ntawm kev nce nrawm thiab lub zog ua haujlwm, tej zaum thaum kawg paub txog ib qho khoom siv thoob ntiaj teb nrog kev nco thiab kev ua haujlwm zoo.Nws yog ib qho kev sib tw loj heev, tab sis peb tau pom cov khoom siv uas yuav ua rau nws ua tau.Peb cia siab tias yuav muaj kev ruaj ntseg nyiaj txiag thiab kev lag luam kev sib koom tes los nrhiav peb txoj haujlwm. "
Post lub sij hawm: May-05-2021