Kwixesha elidlulileyo, ushicilelo lweFiziksi yoNxibelelwano lwapapasha inqaku lesayensi elithi "Ukusebenzisa imimandla ye-ferroelectric kwi-negative capacitance", ababhali babo yayiziingcali zefiziksi zaseRashiya ezivela kwiYunivesithi yaseSouth Federal (iRostov-on-Don) uYuri Tikhonov no-Anna Razumnaya, iingcali zefiziksi zaseFransi. IYunivesithi yasePicardy ebizwa ngokuba nguJules Verne Igor Lukyanchuk kunye no-Anais Sen, kunye nenzululwazi yezinto ezivela kwi-Argonne National Laboratory uValery Vinokur. Inqaku lithetha ngokudalwa kwe-capacitor "engenakwenzeka" enentlawulo embi, eyaxelwa kwangaphambili kwiminyaka emashumi edlulileyo, kodwa ngoku sele isetyenziswe.
Uphuhliso luthembisa inguqu kwiisekethe ze-elektroniki zezixhobo ze-semiconductor. I-pair of "negative" kunye ne-capacitor eqhelekileyo enentlawulo efanelekileyo, exhunywe kwichungechunge, inyusa igalelo lombane kwinqanaba elinikeziweyo ngaphezu kwexabiso legama elifunekayo ekusebenzeni kwamacandelo athile eesekethe ze-elektroniki. Ngamanye amazwi, iprosesa inokuthi inikwe amandla ombane ophantsi, kodwa loo macandelo eesekethe (iibhloko) ezifuna i-voltage eyandisiweyo ukuze isebenze iya kufumana amandla alawulwayo ngokunyuka kwamandla ombane usebenzisa izibini "ezimbi" kunye ne-capacitors eziqhelekileyo. Oku kuthembisa ukuphucula amandla okusebenza kweesekethe zekhompyutha kunye nokunye okuninzi.
Ngaphambi kokuba oku kuphunyezwe kwe-negative capacitors, umphumo ofanayo wafunyanwa ixesha elifutshane kwaye kuphela phantsi kweemeko ezikhethekileyo. Izazinzulu zaseRashiya, kunye noogxa base-USA naseFransi, beza nesakhiwo esizinzile nesilula se-capacitors engalunganga, efanelekileyo kwimveliso yobuninzi kunye nokusebenza phantsi kweemeko eziqhelekileyo.
Isakhiwo se-negative capacitor ephuhliswe yi-physicists iqukethe imimandla emibini ehlukeneyo, nganye iqulethe i-nanoparticles ye-ferroelectric kunye nentlawulo ye-polarity efanayo (kwiincwadi zeSoviet zazibizwa ngokuba yi-ferroelectrics). Kwimeko yabo eqhelekileyo, i-ferroelectrics inentlawulo engathathi hlangothi, ebangelwa yimimandla ejoliswe ngokungaqhelekanga ngaphakathi kwezinto eziphathekayo. Iingcali zenzululwazi ziye zakwazi ukuhlukanisa i-nanoparticles kunye nentlawulo efanayo kwiindawo ezimbini ezihlukeneyo zomzimba ze-capacitor - nganye kwindawo yayo.
Kumda oqhelekileyo phakathi kwemimandla emibini echaseneyo, udonga olubizwa ngokuba ludonga lwavela ngokukhawuleza - indawo yokutshintsha kwepolarity. Kwavela ukuba udonga lwesizinda lunokuhanjiswa ukuba i-voltage isetyenziswe kwenye yemimandla yesakhiwo. Ukufuduswa kodonga lwesizinda kwicala elinye kwaba lilingana nokuqokelela intlawulo embi. Ngaphezu koko, ngakumbi i-capacitor ihlawuliswa, i-voltage ephantsi kwiiplate zayo. Oku akunjalo ngee-capacitors eziqhelekileyo. Ukunyuka kwentlawulo kukhokelela ekunyuseni kwe-voltage kwiiplate. Ekubeni i-capacitor engalunganga kunye neqhelekileyo idityaniswe kuluhlu, iinkqubo aziphuli umthetho wokugcinwa kwamandla, kodwa zikhokelela ekubonakaleni kwento enomdla ngendlela yokunyuka kwamandla ombane kwiindawo ezifunwayo kwisekethe ye-elektroniki. . Kuya kuba nomdla ukubona ukuba ezi ziphumo ziya kuphunyezwa njani kwiisekethe ze-elektroniki.
umthombo: 3dnews.ru