Vatsvaguriri vekuCRANN (The Centre for Research on Adaptive Nanostructures and Nanodevices), pamwe neChikoro cheFizikisi paTrinity College Dublin, nhasi vazivisa kutizvinhu zvemaginetiyakagadzirwa paCentre inoratidza kushanduka kwemagineti kunokurumidza kupfuura kose kwati kwamboitwa.
Chikwata ichi chakashandisa masisitimu elaser e femtosecond muPhotonics Research Laboratory kuCRANN kuti vachinje uye vadzosere kurongeka kwemagineti kwezvinhu zvavo mu trillionths yesekondi, nekukurumidza katanhatu kupfuura rekodhi yapfuura, uye nekukurumidza kazana kupfuura kumhanya kwewachi kwekombuta yemunhu.
Kuwanikwa uku kunoratidza kugona kwezvinhu izvi muchizvarwa chitsva chemakomputa anokurumidza kushandisa simba zvakanyanya uye masisitimu ekuchengetera data.
Vaongorori vakasvika pakumhanya kwavo kusingaenzaniswi muchinhu chinonzi MRG, chakatanga kugadzirwa neboka iri muna 2014 kubva ku manganese, ruthenium ne gallium. Mukuyedza uku, timu iyi yakawana mafirimu matete eMRG nechiedza che laser chitsvuku, zvichiburitsa ma megawatts esimba munguva isingasviki bhiriyoni yesekondi.
Kuchinja kwekupisa kunochinja mafambiro emagineti eMRG. Zvinotora chikamu chegumi chepicosecond chinokasira zvisingafungidzike kuti chiwane shanduko iyi yekutanga (1 ps = chikamu chimwe chete chetriliyoni chesekondi). Asi, chinonyanya kukosha, timu yakaona kuti yaigona kushandura mafambiro aya zvakare nezvikamu gumi zvetriliyoni zvesekondi gare gare. Uku ndiko kuchinjazve nekukurumidza kwemafambiro emagineti kwati kwamboonekwa.
Mhedzisiro yavo yakabudiswa vhiki rino mumagazini yefizikisi inotungamira, Physical Review Letters.
Kuwanikwa uku kunogona kuvhura nzira itsva dzekuvandudza makombiyuta neruzivo rwemakombiyuta, tichifunga nezvekukosha kwezvinhu zvemaginetis muindasitiri iyi. Zvakavanzika mumidziyo yedu yakawanda yemagetsi, pamwe nenzvimbo huru dzedata dziri pakati peinternet, zvinhu zvemagineti zvinoverenga uye zvinochengeta data racho. Kupararira kweruzivo kuripo kunogadzira data rakawanda uye kunopedza simba rakawanda kupfuura kare. Kutsvaga nzira itsva dzinoshandisa simba zvakanaka dzekushandisa data, nezvinhu zvinoenderana, chinhu chinonetsa pasi rose panyaya dzekutsvaga.
Chinokosha pakubudirira kwezvikwata zveTrinity kwaive kugona kwavo kuita shanduko inokurumidza pasina simba remagineti. Kuchinja magineti kwechinyakare kunoshandisa imwe magnet, iyo inodhura simba nenguva. NeMRG, kuchinja kwacho kwakaitwa nekupisa, zvichishandisa kudyidzana kwakasiyana kwechinhu chacho nechiedza.
Vaongorori veTrinity Jean Besbas naKarsten Rode vanokurukura imwe nzira yekutsvaga:
"Zvinhu zvemaginetis ine ndangariro inogona kushandiswa pakufunga. Kusvika pari zvino, kuchinja kubva kune imwe magnetic state 'logical 0,' kuenda kune imwe 'logical 1,' kwave kuchida simba rakawanda uye kwainonoka. Tsvagiridzo yedu inotarisa kumhanya nekuratidza kuti tinogona kuchinja MRG kubva kune imwe state kuenda kune imwe mu 0.1 picoseconds uye zvakakosha kuti switch yechipiri inogona kutevera picoseconds gumi chete gare gare, zvichienderana nefrequency yekushanda ye ~ 100 gigahertz - nekukurumidza kupfuura chero chinhu chakaonekwa kare.
"Kuwanikwa uku kunoratidza kugona kweMRG yedu kubatanidza chiedza nekutenderera zvinobudirira kuitira kuti tigone kudzora magineti nechiedza uye chiedza nemagnetism panguva dzisingagoneki kusvika parizvino."
Vachitaura nezvebasa rechikwata chavo, Purofesa Michael Coey, weTrinity's School of Physics naCRANN, vakati, “Muna 2014 apo ini nechikwata changu takazivisa kekutanga kuti takanga tagadzira alloy itsva yemanganese, ruthenium negallium, inozivikanwa seMRG, hatina kumbobvira tafungidzira kuti chinhu ichi chaive nesimba iri remagneto-optical.
"Kuratidzwa uku kuchatungamira kune pfungwa itsva dzemidziyo dzakavakirwa pachiedza nemagnetism dzinogona kubatsirwa nekuwedzera kukuru kwekumhanya uye kushanda zvakanaka kwesimba, zvichida pakupedzisira kugadzira mudziyo mumwe chete wepasi rose une ndangariro yakabatana uye mashandiro ekufunga. Idambudziko guru, asi takaratidza zvinhu zvinogona kuita kuti zvikwanisike. Tinovimba kuwana mari uye kushandira pamwe muindasitiri kuti tiite basa redu."
Nguva yekutumira: Chivabvu-05-2021