ʻO nā mea hana superconducting honua

Ka loaa ana ocopper oxideʻO nā superconductors me kahi mahana koʻikoʻi Tc ʻoi aʻe ma mua o 77K ua hōʻike i nā manaʻo maikaʻi aʻe no nā superconductors, me nā superconductors perovskite oxide i loaʻa nā mea honua laha ʻole, e like me YBa2Cu3O7-δ。 (i hoʻopau ʻia ʻo 123 phase, YBaCuO a i ʻole YBCO) he ʻano koʻikoʻi o ka wela kiʻekiʻe. mea superconducting. ʻOi aku ka nui o nā honua laha ʻole, e like meGd, Dy, Ho, Er, Tm, aYb,hiki ke pani hapa a i ole iayttrium honua laha ʻole (Y), e hana ana i ka moo o Tc kiʻekiʻehonua lahamea superconducting (REBaCuO maʻalahi a i ʻole REBCO) me ka hiki ke hoʻomohala nui.

Hiki ke hana ʻia nā mea hana superconducting barium copper oxide superconducting i hoʻokahi domain bulk material, coated conductors (ʻelua hanauna kiʻekiʻe-mehana superconducting tapes), a i ʻole nā ​​mea kiʻi ʻoniʻoni ʻoniʻoni, i hoʻohana ʻia i ka superconducting magnetic levitation device a me nā magnet mau loa, ka mana uila ikaika. nā mīkini, a i ʻole nā ​​mea uila uila nāwaliwali. Ma mua o nā pilikia o ka ikehu honua a me nā pilikia kaiapuni, wānana ka poʻe ʻepekema e hoʻomaka ka superconductivity kiʻekiʻe i kahi manawa hou o ka hana mana a me ka hāʻawi ʻana.

ʻO ka Superconductivity e pili ana i ka ʻoiaʻiʻo ma lalo o kekahi mau kūlana, manaʻo ʻia kahi mea i loaʻa ʻole ke kūpaʻa DC a me nā waiwai diamagnetic piha. He mau waiwai kūʻokoʻa kūʻokoʻa kēia, ʻo ka mea mua i ʻike ʻia he conductivity piha, a ʻo ka mea hope i kapa ʻia ʻo ka hopena Meisner, ʻo ia hoʻi ka hoʻopau ʻana o ka magnetization i ka waiwai magnetic o ka ikaika o ke kahua magnetic, ka hopena i ka hoʻopau piha ʻana o ka flux magnetic mai. loko o ka mea.