Abaphenyi baseNtnu bakhanyisa ngezinto ezibucayi ezikalini ezincane ngokwakha ama-movie ngosizo lwama-x-ray aqhakazile kakhulu.
U-Erik Folven, umqondisi wabalingani be-Oxide Electronics eMnyangweni we-NTNU we-Electronic Systems, kanye nozakwabo abavela e-NTNU naseGhent University eBelgium bazimisele ukubona ukuthi ama-micromagnets amancanyana aguqulwe lapho eguqulwa yimikhakha yangaphandle yefilimu. Umsebenzi, ngokwengxenye exhaswe yiNtnu Nano kanye noMkhandlu Wokucwaninga waseNorway, kwanyatheliswa ejelljenali engokomzimba yokucwaninga.
Ama-Tiny Magnets
I-Einar Stal Digernes yasungula ama-magrets amancane asetshenziswa ezivivinyweni.
Ama-Tiny Square Magnets, adalwe yi-NTNU Ph.D. I-Enar Stal Stal Digernes, ingabe ama-micrometer amabili abanzi futhi ahlukaniswe izizinda ezine ezingunxantathu, ngalinye linama-magnetic ahlukile akhomba iwashi noma anti-iwashi elizungeze ama-magnets.
Kwezinye izinto ezibucayi, amaqembu amancane ama-athomu ahlangana ezindaweni ezibizwa ngokuthi ama-elektroni anemibono efanayo kazibuthe.
Kuma-ntnu magnets, lezi zizinda zihlangana endaweni ephakathi nendawo - isikhungo se-vortex lapho umzuzwana kazibuthe ekhomba khona ngqo noma ephuma endizeni yalokho okuqukethwe.
UFolven uthi: "Lapho sisebenzisa amandla kazibuthe, ngaphezu kwalezi zizinda zizokhomba ngendlela efanayo. "Bangakhula futhi bangancipha, bese bengahlangana bodwa."
Ama-elektroni cishe ngejubane lokukhanya
Ukubona lokhu kwenzeka akulula. Abaphenyi bathatha ama-synchrotroni abo abunjiwe abangu-80m-kabanzi, abizwa ngeBesy II, eBerlin, lapho ama-elektroni asheshiswa khona aze ahambe cishe ngejubane lokukhanya. Lawo ma-elektroni asheshayo ahamba ngokushesha abe esekhipha ama-X-ray agqamile.
UFolven uthi: "Sithatha le misebe le sisebenzise njengokukhanya okusi-microscope.
Ngoba ama-elektroni ahamba azungeze i-synchrotron emaqhubeni ahlukaniswe ama-nanosecond amabili, ama-X-ray akhipha ama-pulses aqondile.
I-spanning yokuhambisa i-X-ray microscope, noma i-STXM, ithatha lezo ze-X-Rays ukudala isifinyezo sesakhiwo sezibalo sezinto ezibonakalayo. Ngokufaka lezi zinkundla ndawonye, abacwaningi bangadala i-movie ekhombisa ukuthi i-micromagnet ishintsha kanjani ngokuhamba kwesikhathi.
Ngosizo lwe-STXM, uFolven nozakwabo baphazamise ama-micromagnets abo ngokushaya kwamanje okukhiqizwa amandla kazibuthe, futhi babona izizinda zishintsha ukwakheka kanye nokuhamba komgogodla weVortex kusuka enkabeni.
Uthi: "Unezinkathi ezincane kakhulu, bese uzithoba futhi uzame ukuyishaya njengoba iphinde ihlale futhi," kusho yena. Ngemuva kwalokho, babona umnyombo ubuyela enkabeni - kepha eceleni kwendlela enomoya, hhayi umugqa oqondile.
UFolven uthi: "Kuzoba nomdanso ubuyela enkabeni.
Isiliphu esisodwa futhi kuphelile
Yingoba bafunda izinto ze-Epitaxial, ezidalwe ngaphezulu kwe-substrate evumela abacwaningi ukuba basebenzise izakhiwo ezibonakalayo, kepha bangavimba ama-x-ray nge-stxm.
Ukusebenza eNtnu Nanolab, abacwaningi baxazulula inkinga ye-substrate ngokungcwaba i-micromagnet yabo ngaphansi kwengxenye yekhabhoni ukuvikela izakhiwo zayo ze-magnetic.
Ngemuva kwalokho baxoshwa ngokucophelela nangokucacile i-substrate ngaphansi kogongolo olugxile ku-gallium ion kuze kube kuphela ungqimba omncane kakhulu. Inqubo ebuhlungu ingathatha amahora ayisishiyagalombili ngesampula ngalinye - futhi eyodwa isheleleki ingapela inhlekelele.
Uthi: "Into ebucayi ukuthi, uma ubulala uMagnetism, ngeke sazi ukuthi ngaphambi kokuba sihlale eBerlin," kusho yena. "Icebo, kunjalo, ukuletha amasampula angaphezu kweyodwa."
Kusuka ku-physics eyisisekelo kuya kumadivayisi wesikhathi esizayo
Ngikujabulele ukuthi kusebenze, futhi iqembu lasebenzisa amasampula alo ngokucophelela alungiselelwe eshadini ukuthi izizinda ze-micromiagnet zikhula kanjani futhi zincipha ngokuhamba kwesikhathi. Baphinde badale ukumbumbuluzwa kwekhompyutha ukuthi baqonde kangcono ukuthi yimaphi amabutho asemsebenzini.
Kanye nokuthuthukisa ulwazi lwethu lwe-physics eyisisekelo, ukuqonda ukuthi amabutheti asebenza kanjani ngalezi ubude ubude futhi izikali zesikhathi zingasiza ekwakheni amadivaysi esizayo.
UMagnetism usevele esetshenziselwa ukugcinwa kwedatha, kepha abacwaningi njengamanje bafuna izindlela zokukuxhaphaza ngokwengeziwe. Ama-magnetic activation of the vortex umgogodla kanye nezizinda ze-micromagnet, ngokwesibonelo, angahle asetshenziselwe ukukhokha imininingwane ngesimo sama-0s nama-1s.
Abaphenyi manje sebehlose ukuphinda lo msebenzi ngezinto zokulwa nama-ferromagnetic, lapho umphumela we-net wezikhathi zamandla kazibuthe uzikhansula. Lokhu kuthembisa uma kukhulunywa nge-computing-ku-theory, izinto zokulwa nama-anti-ferromagnetic zingasetshenziswa ukwenza amadivaysi adinga amandla amancane futhi ahlale azophenya ngoba amasiginali awohloka awona awohloka kakhulu.
Naphezu kwaleyo nselelo, uFolven unethemba. "Simboze umhlaba wokuqala ngokubonisa ukuthi singenza amasampula futhi sibabheke ngama-X-ray," kusho yena. "Isinyathelo esilandelayo sizobona ukuthi singenza amasampula ekhwalithi ephezulu ngokwanele ukuthola isibonakaliso esanele kusuka ezintweni ezilwa nama-ferromagnetic."
Isikhathi sePosi: Meyi-10-2021