Cov kws tshawb nrhiav los ntawm NTNU yog cov teeb pom kev ntawm cov ntaub ntawv sib nqus ntawm cov nplai me me los ntawm kev pab cov yeeb yaj kiab nrog kev pab ntawm qee cov hluav taws xob xaim.
Erik Falven, Co-Director Pawg ntawm Oxide Electronics Groart of Ntnu Lub Tsev Kawm Hluav Taws Xob Kev ua haujlwm, ib nrab nyiaj los ntawm NTNU NANO thiab Kev Tshawb Fawb ntawm Norway, tau luam tawm hauv phau ntawv txhais lus Kev Tshawb Fawb Kev Tshawb Fawb.
Cov hlau nplaum me me
Einar Standal Digernes tau tsim cov hlau me me uas siv hauv kev sim.
Cov hlau nplaum me me, tsim los ntawm NTNU Ph.D. Tus neeg sib tw Einar Standal Digernes, tsuas yog ob lub micrometers dav thiab faib ua plaub daim duab peb sab, txhua tus nrog sib txawv sib nqus kev taw tes lossis tiv thaiv raws li cov hlau nplaum.
Hauv qee cov ntaub ntawv sib nqus, cov pab pawg me me ntawm cov atoms band ua ke rau thaj chaw hu ua thaj chaw, nyob rau hauv uas tag nrho cov electrons muaj tib lub ntsej muag sib nqus.
Nyob rau hauv cov hlau nplaum NTNU, cov thawj coj sib ntsib ntawm lub hauv paus ntsiab lus-lub Vortex tub ntxhais-qhov twg lub caij sib nqus ntawm lub dav hlau ntawm lub dav hlau ntawm cov khoom.
"Thaum peb thov daim teb sib nqus, ntau dua thiab ntau dua ntawm cov ntawv no yuav taw tes rau tib txoj kev qhia," hais tias FishPen. "Lawv tuaj yeem loj hlob tuaj thiab lawv tuaj yeem thim, thiab tom qab ntawd lawv tuaj yeem sib tshuam ua ke."
Cov hluav taws xob yuav luag ntawm qhov ceev ntawm lub teeb
Pom qhov no tshwm sim tsis yooj yim. Cov kws tshawb nrhiav tau siv lawv cov micromagnets rau ib tug 80m-dav donut-scronson, nyob rau hauv berlin, nyob rau hauv berlin, nyob rau hauv berlin, nyob rau hauv berlin, nyob rau hauv berlin, nyob rau qhov twg mus kom txog thaum lawv taug kev ntawm yuav luag qhov ceev ntawm lub teeb. Cov khoom siv hluav taws xob khiav ceev ceev ces emit heev ci ntsa iab x-rays.
"Peb noj cov x-rays thiab siv lawv raws li lub teeb nyob rau hauv peb lub koob tsom iav," hais Folven.
Vim tias cov tshuab hluav taws xob mus ncig lub synchrotron cais los ntawm ob nanoseconds, cov x-rays lawv emit tuaj nyob rau hauv precise tuaj nyob rau hauv meej pulses.
Kev ntsuas kev kis xoo hluav taws xob tsom iav, lossis stxm, siv cov x-rays los tsim ib qho kev sib nqus ntawm cov khoom sib nqus. Los ntawm stitching cov snapshots ua ke, cov kws tshawb nrhiav tuaj yeem ua qhov tseem ceeb tsim cov yeeb yam uas qhia tau tias micromagnet hloov li cas.
Nrog kev pab ntawm lub stxm, fishven thiab nws cov npoj yaig uas cuam tshuam lawv cov mem tes ntawm cov khoom siv sib nqus, thiab pom tus thawj coj hloov pauv thiab lub Vortex tub ntxhais txav mus los ntawm lub chaw.
Nws hais tias, "Koj muaj lub hlau nplaum me me, thiab tom qab ntawd koj qw nws thiab sim ua duab nws ib yam li nws hais ntxiv. Tom qab, lawv pom cov tub ntxhais rov qab mus rau nruab nrab-tab sis raws txoj kev winding, tsis yog txoj kab ncaj nraim.
"Nws yuav seev cev rov qab mus rau hauv nruab nrab," Folven.
Ib leeg thiab nws dhau lawm
Yog vim lawv kawm cov ntaub ntawv Epitaxial, uas yog tsim nyob rau sab saum toj ntawm substrate uas tso cai rau cov kws tshawb fawb los tweak cov khoom siv, tab sis yuav thaiv cov x-ray hauv stxm.
Ua haujlwm nyob rau hauv NTNU Nanolab, cov kws tshawb nrhiav daws cov teeb meem substrate los ntawm faus lawv cov micromagnet nyob rau hauv ib txheej ntawm cov pa roj carbon los tiv thaiv nws cov khoom sib nqus.
Tom qab ntawd lawv ua tib zoo thiab precisely cab tseg lub substrate hauv qab nrog lub tsom iav ions kom txog thaum tsuas yog ib txheej nyias nyias. Cov txheej txheem mob siab yuav siv tau yim teev nyob rau ib teev-thiab ib qho plam yuav muaj kev puas tsuaj loj.
"Qhov tseem ceeb yog qhov ntawd, yog tias koj tua cov hlau nplaum, peb yuav tsis paub tias ua ntej peb zaum hauv Berlin," nws hais. "Qhov ua kom yuam kev yog, tau kawg, kom coj ntau tshaj ib tus qauv."
Los ntawm kev ua physics rau cov khoom siv yav tom ntej
Ua tsaug rau nws tau ua haujlwm, thiab pab neeg tau siv lawv kom zoo zoo-npaj cov qauv los qhia seb cov micromagnet's loj zuj zus thiab ntsws dhau sijhawm. Lawv kuj tsim lub computer sim kom nkag siab zoo dua cov rog yog tom haujlwm.
Raws li zoo li nce qib peb txoj kev paub txog philics, kev nkag siab tias muaj pes tsawg lub zog ua haujlwm ntawm cov khoom siv yav tom ntej.
Magnetism yog twb tau siv rau cov ntaub ntawv cia, tab sis cov kws tshawb nrhiav tab tom nrhiav rau txoj hauv kev los siv nws ntxiv. Cov kev sib nqus ntawm cov neeg sib nqus ntawm Vortex tub ntxhais thiab cov thawj ntawm micromagnet, tuaj yeem siv cov lus qhia hauv daim ntawv ntawm 0s thiab 1s.
Cov kws tshawb nrhiav tam sim no tau npaj rov ua haujlwm no nrog cov ntaub ntawv tiv thaiv ferromagetic, qhov twg cov dab tsi cuam tshuam ntawm cov neeg sib nqus cov kaus poom tawm. Cov no yog cov lus cog lus thaum nws los txog rau computing-in theory uas yuav tsum tau ruaj khov txawm tias lub zog los tshawb xyuas vim tias cov cim lawv muaj zog ntau.
Txawm tias muaj kev sib tw no, Folven yog qhov zoo. "Peb tau them thawj hauv av los ntawm kev qhia tias peb tuaj yeem ua rau cov qauv thiab saib los ntawm lawv nrog cov xoo hluav taws xob," nws hais. "Cov kauj ruam tom ntej yog saib seb peb tuaj yeem ua cov qauv ntawm cov teeb liab zoo kom tau teeb liab txaus los ntawm cov khoom siv los tiv thaiv cov khoom siv."
Lub Sijhawm Post: Lub Tsib Hlis-10-2021