Ofufuza ku CRANN (The Center for Research on Adaptive Nanostructures and Nanodevices), ndi Sukulu ya Fizikisi ku Trinity College Dublin, lero alengeza kutizinthu zamaginitoChopangidwa ku Centre chikuwonetsa kusintha kwa maginito mwachangu kwambiri komwe kudalembedwapo.
Gululi linagwiritsa ntchito makina a laser a femtosecond ku Photonics Research Laboratory ku CRANN kuti lisinthe kenako n’kusinthanso kayendedwe ka maginito ka zinthu zawo mu trillionths ya sekondi imodzi, mofulumira kasanu ndi kamodzi kuposa mbiri yakale, komanso mofulumira ka zana kuposa liwiro la wotchi ya kompyuta yanu.
Kupeza kumeneku kukuwonetsa kuthekera kwa zinthuzi pakupanga makompyuta atsopano omwe amagwiritsa ntchito mphamvu mwachangu kwambiri komanso makina osungira deta.
Ofufuzawa adakwanitsa kusintha mofulumira kwambiri pogwiritsa ntchito alloy yotchedwa MRG, yomwe idapangidwa koyamba ndi gululi mu 2014 kuchokera ku manganese, ruthenium ndi gallium. Mu kuyeseraku, gululi lidapeza mafilimu opyapyala a MRG ndi kuwala kofiira kwa laser, zomwe zidapereka ma megawatts a mphamvu osakwana gawo limodzi mwa magawo mabiliyoni a sekondi.
Kusamutsa kutentha kumasintha kayendedwe ka maginito ka MRG. Zimatengera gawo limodzi la magawo khumi la picosecond kuti zikwaniritse kusintha koyamba kumeneku (1 ps = gawo limodzi la trilioni la sekondi). Koma chofunika kwambiri, gululo linapeza kuti likhoza kusintha kayendedwe ka maginito kachiwiri ndi magawo khumi a trilioni a sekondi pambuyo pake. Uku ndi kusintha kwachangu kwambiri kwa kayendedwe ka maginito komwe kwawonedwapo.
Zotsatira zawo zasindikizidwa sabata ino mu magazini yotchuka ya fizikisi, Physical Review Letters.
Kupeza kumeneku kungatsegule njira zatsopano zopangira makompyuta atsopano ndi ukadaulo wazidziwitso, poganizira kufunika kwazinthu zamaginitos mumakampani awa. Zobisika m'zida zathu zambiri zamagetsi, komanso m'malo akuluakulu osungira deta pakati pa intaneti, zinthu zamaginito zimawerenga ndikusunga detayo. Kuphulika kwa chidziwitso komwe kukuchitika kumapanga deta yambiri ndipo kumadya mphamvu zambiri kuposa kale lonse. Kupeza njira zatsopano zogwiritsira ntchito mphamvu moyenera posinthira deta, ndi zinthu zomwe zikugwirizana, ndi nkhani yofufuza padziko lonse lapansi.
Chinsinsi cha kupambana kwa magulu a Trinity chinali kuthekera kwawo kukwaniritsa kusinthana mwachangu popanda mphamvu ya maginito. Kusinthana kwa maginito mwachizolowezi kumagwiritsa ntchito maginito ena, omwe amawononga ndalama zambiri malinga ndi mphamvu ndi nthawi. Ndi MRG kusinthana kunatheka ndi kutentha kwa kutentha, pogwiritsa ntchito kuyanjana kwapadera kwa zinthuzo ndi kuwala.
Ofufuza a Trinity, Jean Besbas ndi Karsten Rode, akufotokoza njira imodzi yofufuzira:
“Zinthu zamaginitoMwachibadwa, ali ndi kukumbukira komwe kungagwiritsidwe ntchito pa logic. Pakadali pano, kusintha kuchokera ku magnetic state imodzi 'logical 0,' kupita ku 'logical 1' ina kwakhala kofuna mphamvu zambiri komanso kochedwa kwambiri. Kafukufuku wathu akufotokoza za liwiro posonyeza kuti tikhoza kusintha MRG kuchokera ku state imodzi kupita ku ina mu 0.1 picoseconds ndipo chofunika kwambiri n'chakuti kusintha kwachiwiri kungatsatire 10 picoseconds pambuyo pake, zomwe zikugwirizana ndi kuchuluka kwa ntchito kwa ~ 100 gigahertz—mofulumira kuposa chilichonse chomwe chawonedwa kale.
"Kupeza kumeneku kukuwonetsa luso lapadera la MRG yathu logwirizanitsa kuwala ndi kuzungulira bwino kuti tithe kuwongolera mphamvu ya maginito ndi kuwala ndi kuwala ndi mphamvu ya maginito pa nthawi yomwe sitingathe kuikwanitsa."
Polankhula za ntchito ya gulu lake, Pulofesa Michael Coey, Sukulu ya Fizikisi ya Trinity ndi CRANN, anati, “Mu 2014 pamene ine ndi gulu langa tinalengeza koyamba kuti tapanga alloy yatsopano ya manganese, ruthenium ndi gallium, yotchedwa MRG, sitinaganizepo kuti zinthuzo zinali ndi mphamvu zodabwitsa za magneto-optical.
"Chiwonetserochi chidzatsogolera ku malingaliro atsopano a chipangizo chozikidwa pa kuwala ndi maginito omwe angapindule ndi liwiro lowonjezeka komanso kugwiritsa ntchito mphamvu moyenera, mwina pomaliza pake kukwaniritsa chipangizo chimodzi chogwirizana ndi kukumbukira ndi magwiridwe antchito a logic. Ndi vuto lalikulu, koma tawonetsa zinthu zomwe zingathandize. Tikukhulupirira kupeza ndalama ndi mgwirizano wamakampani kuti tipititse patsogolo ntchito yathu."
Nthawi yotumizira: Meyi-05-2021