Lisebelisoa tsa superconducting tse sa tloaelehang tsa lefatše

Ho sibolloa haoxide ea koporoli-superconductors tse nang le mocheso o matla oa Tc o phahameng ho feta 77K o bontšitse tebello e ntle le ho feta bakeng sa li-superconductors, ho kenyelletsa le li-superconductors tsa perovskite oxide tse nang le likarolo tse sa tloaelehang tsa lefatše, joalo ka YBa2Cu3O7- δ。 (e khutsufalitsoeng e le 123 phase, YBaCuO kapa YBCO) ke mofuta oa bohlokoa oa mocheso o phahameng oa mocheso. superconducting lintho tse bonahalang. Haholo-holo boima rare earths, joalo kaGd, Dy, Ho, Er, Tm, leEe,e ka nkela sebaka ka mokhoa o sa fellang kapa ka ho feletsengrare earth yttrium (Y), ho etsa letoto la Tc e phahamenglefatshe le sa tlwaelehanglisebelisoa tsa superconducting (REBaCuO e bonolo kapa REBCO) e nang le bokhoni bo boholo ba nts'etsopele.

Lisebelisoa tse sa tloaelehang tsa lefatše barium copper oxide superconducting li ka etsoa hore e be lisebelisoa tse ngata tse ngata, li-conductors tse koahetsoeng (litheipi tse phahameng tsa mocheso o phahameng oa mocheso o phahameng), kapa lisebelisoa tse tšesaane tsa filimi, tse sebelisoang ka ho latellana ho laola lisebelisoa tsa matla a khoheli le limakete tse sa feleng, matla a matla a motlakase. mochini, kapa lisebelisoa tsa elektronike tse fokolang. Haholo-holo ha ho tobane le mathata a lefats'e a matla le tikoloho, bo-rasaense ba bolela esale pele hore matla a phahameng a mocheso a phahameng a tla tlisa mehla e mecha ea ho hlahisa le ho ajoa ha matla.

Superconductivity e bua ka taba ea hore tlas'a maemo a itseng, thepa e nkoa e na le zero DC ho hanyetsa le thepa e feletseng ea diamagnetic. Tsena ke thepa e 'meli e ikemetseng, ea pele e tsejoang hape e le conductivity e felletseng, 'me ea morao-rao e boetse e tsejoa e le Meisner effect, e bolelang hore magnetization e felisa ka ho feletseng thepa ea khoheli ea matla a matla a khoheli, e leng se fellang ka ho tlosoa ka ho feletseng ha matla a khoheli. bokahare ba thepa.


Nako ea poso: Oct-20-2023