Ezintweni ze-superconducting, umsinga kagesi uzogeleza ngaphandle kokuphikiswa.Kunezindlela ezimbalwa ezisebenzayo zalesi simo;nokho, imibuzo eminingi ebalulekile isalokhu ingakaphendulwa.USolwazi uJustin Ye, inhloko yeqembu le-Device Physics of Complex Materials eNyuvesi yaseGroningen, wafunda i-superconductivity ongqimbeni oluphindwe kabili lwe-molybdenum disulfide futhi wathola izifundazwe ezintsha ze-superconducting.Imiphumela yashicilelwa kujenali Nanotechnology ngomhlaka 4 Novemba.

I-Superconductivity iboniswe kumakristalu e-monolayer, isibonelo, i-molybdenum disulphide noma i-tungsten disulfide enogqinsi lwama-athomu amathathu nje."Kuzo zombili i-monolayers, kukhona uhlobo olukhethekile lwe-superconductivity lapho insimu yamagnetic yangaphakathi ivikela isimo se-superconducting emasimini angaphandle kazibuthe," kuchaza u-Ye.I-superconductivity evamile iyanyamalala lapho kusetshenziswa insimu enkulu kazibuthe yangaphandle, kodwa le-Ising superconductivity ivikelwe ngokuqinile.Ngisho nasendaweni enamandla kazibuthe e-static eYurophu, enamandla angu-37 Tesla, i-superconductivity ku-tungsten disulfide ayibonisi noma yiluphi ushintsho.Nokho, nakuba kukuhle ukuba nesivikelo esinamandla kangaka, inselele elandelayo ukuthola indlela yokulawula lo mphumela wokuvikela, ngokusebenzisa inkambu kagesi.

Izifunda ezintsha ze-superconducting

U-Ye nabahlanganyeli bakhe bafunde ungqimba oluphindwe kabili lwe-molybdenum disulfide: "Kulokho kumisa, ukusebenzisana phakathi kwezingqimba ezimbili kudala izifundazwe ezintsha ezihamba phambili."Udale isendlalelo esiphindwe kabili esimisiwe, esinoketshezi lwe-ayoni nhlangothi zombili olungasetshenziswa ukudala inkambu kagesi ngaphesheya kwebilayer."Ku-monolayer ngayinye, inkambu enjalo izoba yi-asymmetric, ibe nama-ion amahle ngakolunye uhlangothi kanye nezindleko ezingalungile kolunye.Kodwa-ke, ku-bilayer, singaba nenani elifanayo lenkokhelo elenziwa kuzo zombili i-monolayers, sidale uhlelo olulinganayo,” kuchaza u-Ye.Inkambu kagesi eyadalwa ngaleyo ndlela ingase isetshenziselwe ukuvula nokuvala i-superconductivity.Lokhu kusho ukuthi kwadalwa i-superconducting transistor engase ingene ngoketshezi lwe-ionic.

Kusendlalelo esiphindwe kabili, ukuvikeleka kwe-Ising ngokumelene nezizibuthe zangaphandle kuyanyamalala."Lokhu kwenzeka ngenxa yezinguquko ekusebenzisaneni phakathi kwezingqimba ezimbili."Nokho, inkambu kagesi ingabuyisela ukuvikeleka."Izinga lokuvikela liba umsebenzi wokuthi uyisango eliqine kangakanani idivayisi."

Cooper ngababili

Ngaphandle kokwenza i-superconducting transistor, u-Ye nozakwabo benza okunye ukuphawula okuthakazelisayo.Ngo-1964, kwabikezelwa ukuthi kuzoba khona isimo esikhethekile se-superconducting, esibizwa ngokuthi i-FFLO state (eqanjwe ngososayensi ababikezela: uFulde, uFerrell, uLarkin no-Ovchinnikov).Nge-superconductivity, ama-electron ahamba ngamabili ngezindlela eziphambene.Njengoba ehamba ngesivinini esifanayo, la mapheya e-Cooper anomfutho wekinetic ophelele onguziro.Kodwa esimweni se-FFLO, kunomehluko omncane wejubane ngakho-ke umfutho we-kinetic awuwona uziro.Kuze kube manje, lesi simo asikaze sifundwe kahle ekuhlolweni.

"Sihlangabezane cishe nazo zonke izimfuneko zokulungiselela isimo se-FFLO kudivayisi yethu," kusho u-Ye.“Kepha isimo sintekenteke kakhulu futhi sithinteka kakhulu ukungcola okungaphezulu kwempahla yethu.Ngakho-ke, sizodinga ukuphinda izivivinyo ngamasampula ahlanzekile.”

Ngebilayer emisiwe ye-molybdenum disulfide, i-Ye nabahlanganyeli banazo zonke izithako ezidingekayo ukuze kufundwe ezinye zezimo ezikhethekile ze-superconducting."Lena isayensi eyisisekelo engasilethela izinguquko zomqondo."