Ukufunyanwa kweioksidi yobhedui-superconductors eneqondo lokushisa elibalulekileyo i-Tc ephezulu kune-77K ibonise amathuba angcono kwi-superconductors, kuquka i-perovskite oxide superconductors equkethe izinto ezinqabileyo zomhlaba, ezifana ne-YBa2Cu3O7- δ。 (efinyeziweyo njengesigaba se-123, i-YBaCuO okanye i-YBCO) luhlobo olubalulekileyo lobushushu obuphezulu. superconducting izinto. Ingakumbi imihlaba enqabileyo enzima, njengeGd, Dy, Ho, Er, Tm, kwayeYb,inokubuyisela ngokuyinxenye okanye ngokupheleleyoumhlaba onqabileyo yttrium (Y), ukwenza uluhlu lwe-Tc ephezuluumhlaba onqabileyoizinto eziphezulu ze-superconducting (i-REBaCuO elula okanye i-REBCO) enamandla amakhulu ophuhliso.
Izinto ezinqabileyo zomhlaba ze-barium copper oxide superconducting zingenziwa zibe yi-domain eyodwa yobuninzi bezinto, ii-conductor ezigqunyiweyo (isizukulwana sesibini sobushushu obuphezulu beteyiphu), okanye izixhobo zefilimu ezicekethekileyo, ezithi zisetyenziswe ngokulandelelanayo kwizixhobo zombane zemagnethi kunye neemagnethi ezisisigxina, amandla ombane awomeleleyo. oomatshini, okanye izixhobo zombane ezibuthathaka. Ngokukodwa xa bejongene neengxaki zamandla ehlabathi kunye nemiba yokusingqongileyo, izazinzulu ziqikelela ukuba ubushushu obuphezulu beqondo lobushushu buya kuzisa ixesha elitsha lokuvelisa nokusasazwa kwamandla.
I-Superconductivity ibhekiselele kwinto yokuba phantsi kweemeko ezithile, imathiriyeli ithathwa njengenobuxhakaxhaka be-DC kunye neempawu ezipheleleyo ze-diamagnetic. Ezi ziipropathi ezimbini ezizimeleyo ezizimeleyo, ezangaphambili zaziwa ngokuba yi-conductivity epheleleyo, kwaye le yokugqibela ikwabizwa ngokuba yiMeisner effect, okuthetha ukuba imagnetization isusa ngokupheleleyo ipropathi yemagnethi yamandla omhlaba wemagnethi, okukhokelela ekukhutshelweni ngokupheleleyo ukuqukuqela kazibuthe ukusuka. ngaphakathi kwizinto eziphathekayo.
Ixesha lokuposa: Oct-20-2023