Ua ntej ntawm tag nrho: Dab tsi yog superconductivity? Nws yog qhov tshwm sim zoo kawg nkaus uas pom nyob rau hauv 1911los ntawm tus tub ntxhais kawm ua haujlwm nrog tus kws tshawb fawb nto moo Dutch, Kamerlingh-Onnes. Kamerlingh-Onnes pioneer ua haujlwm ntawm qhov kub thiab txias heev - qhov kub thiab txias tsuas yog ob peb degrees saum toj kawg nkaus ntawm qhov kub thiab txias.
Leej twg nrhiav tau superconductors hauv 1911?
Hnub 8 Lub Plaub Hlis 1911, hauv lub tsev no, xibfwb Heike Kamerlingh Onnes thiab nws cov neeg koom tes, Cornelis Dorsman, Gerrit Jan Flim, thiab Gilles Holst, nrhiav tau superconductivity. Lawv pom tias qhov kev tiv thaiv ntawm mercury mus txog "xoom xoom" vim nws qhov kub thiab txias tau qis dua 3 kelvins.
Yam superconductor nrhiav tau li cas?
Ib puas xyoo dhau los, lub Plaub Hlis 8, 1911, Heike Kamerlingh Onnes thiab nws cov neeg ua haujlwm ntawm Leiden cryogenic kuaj yog thawj zaug soj ntsuam superconductivity [1]. Nyob rau hauv ib tug khov mercury xaim, muaj nyob rau hauv xya U-shaped capillaries nyob rau hauv series (saib daim duab 1), hluav taws xob kuj dheev zoo li ploj mus ntawm 4.16 kelvin [2].
Dab tsi yog thawj lub ntsiab lus superconducting pom?
Nyob rau xyoo 1986, J. Georg Bednorz thiab K. Alex Mueller nrhiav tau superconductivity hauv a lanthanum-based cuprate perovskite khoom, uas muaj qhov hloov pauv kub ntawm 35 K (Nobel nqi zog hauv Physics, 1987) thiab yog thawj zaug ntawm high-temperature superconductors.
Qab 2 yog dab tsisuperconductor?
Type II superconductors: muaj ob qhov tseem ceeb, Hc1 thiab Hc2 , ua ib tug superconductor zoo meej nyob rau hauv qhov chaw tseem ceeb (Hc1) thiab tawm tag nrho cov superconducting lub xeev mus rau ib tug ib txwm coj lub xeev saum toj no tseem ceeb teb (H c2), nyob rau hauv ib qho kev sib xyaw thaum nruab nrab ntawm qhov chaw tseem ceeb.
