Qee lub sij hawm dhau los, kev tshaj tawm Kev Sib Txuas Lus Physics tau luam tawm ib tsab xov xwm tshawb fawb "Siv cov ferroelectric domains rau qhov tsis zoo", cov kws sau ntawv uas yog Lavxias tus kws kho mob los ntawm Southern Federal University (Rostov-on-Don) Yuri Tikhonov thiab Anna Razumnaya, physicists los ntawm Fabkis. Tsev kawm ntawv ntawm Picardy muaj npe tom qab Jules Verne Igor Lukyanchuk thiab Anais Sen, nrog rau cov kws tshawb fawb cov ntaub ntawv los ntawm Argonne National Laboratory Valery Vinokur. Kab lus hais txog kev tsim lub "tsis tuaj yeem" capacitor nrog tus nqi tsis zoo, uas tau kwv yees ntau xyoo dhau los, tab sis tsuas yog tam sim no tau muab tso rau hauv kev xyaum.
Txoj kev loj hlob cog lus ib lub kiv puag ncig hauv hluav taws xob circuits ntawm cov khoom siv semiconductor. Ib khub ntawm ib tug "tsis zoo" thiab ib tug pa capacitor nrog ib tug zoo nqi, kev cob cog rua nyob rau hauv series, tsub kom lub input voltage theem ntawm ib tug muab point saum toj nominal tus nqi rau qhov uas yuav tsum tau rau kev ua hauj lwm ntawm tej ntu ntawm hluav taws xob circuits. Hauv lwm lo lus, lub tshuab hluav taws xob tuaj yeem siv los ntawm qhov tsis tshua muaj hluav taws xob, tab sis cov ntu ntawm circuits (blocks) uas yuav tsum muaj qhov muaj zog ntxiv rau kev ua haujlwm yuav tau txais kev tswj hwm lub zog nrog qhov muaj zog ntxiv uas siv cov khub "tsis zoo" thiab cov pa hluav taws xob. Qhov no tau cog lus los txhim kho lub zog ua haujlwm ntawm kev siv hluav taws xob thiab ntau ntxiv.
Ua ntej qhov kev siv ntawm qhov tsis zoo capacitor, cov nyhuv zoo sib xws tau ua tiav rau lub sijhawm luv luv thiab tsuas yog nyob rau hauv cov xwm txheej tshwj xeeb. Cov kws tshawb fawb Lavxias, ua ke nrog cov npoj yaig los ntawm Tebchaws Meskas thiab Fabkis, tau los nrog cov qauv ruaj khov thiab yooj yim ntawm cov khoom siv tsis zoo, tsim nyog rau kev tsim khoom loj thiab kev ua haujlwm nyob rau hauv ib txwm muaj.
Cov qauv ntawm cov tsis zoo capacitor tsim los ntawm physicists muaj ob thaj tsam sib cais, txhua tus muaj ferroelectric nanoparticles nrog tus nqi ntawm tib polarity (hauv Soviet cov ntaub ntawv lawv hu ua ferroelectrics). Nyob rau hauv lawv lub xeev ib txwm, ferroelectrics muaj ib tug nruab nrab nqi, uas yog vim randomly oriented domains nyob rau hauv cov khoom. Cov kws tshawb fawb muaj peev xwm cais cov nanoparticles nrog tib tus nqi rau hauv ob qho tib si lub cev ntawm lub capacitor - txhua qhov hauv nws cheeb tsam.
Ntawm qhov chaw ciam teb ntawm ob thaj tsam qaum teb sab qaum teb, lub npe hu ua phab ntsa tam sim ntawd tshwm sim - thaj tsam ntawm polarity hloov. Nws muab tawm tias cov phab ntsa tuaj yeem txav tau yog tias qhov hluav taws xob tau siv rau ib qho ntawm cov cheeb tsam ntawm cov qauv. Qhov kev hloov pauv ntawm cov phab ntsa sau npe nyob rau hauv ib qho kev coj ua tau sib npaug rau qhov sib npaug ntawm cov nqi tsis zoo. Ntxiv mus, qhov ntau lub capacitor raug them, qhov voltage ntawm nws daim hlau qis dua. Qhov no tsis yog qhov teeb meem nrog cov pa capacitors. Kev nce nqi ua rau muaj qhov nce hauv qhov hluav taws xob ntawm cov phaj. Txij li thaum lub capacitor tsis zoo thiab zoo tib yam txuas nrog hauv cov txheej txheem, cov txheej txheem tsis ua txhaum txoj cai ntawm kev txuag hluav taws xob, tab sis ua rau pom qhov tshwm sim nthuav dav hauv daim ntawv ntawm kev nce hauv cov khoom siv hluav taws xob ntawm qhov xav tau ntawm cov hluav taws xob hluav taws xob. . Nws yuav nthuav kom pom tias cov teebmeem no yuav raug siv li cas hauv hluav taws xob circuits.
Tau qhov twg los: 3d xov.ru