yog graphene magnetic

graphene tsis yog siv los sib nqus, tab sis nws muaj peev xwm ua tau rau nws cov hlau nplaum nyob rau hauv qee qhov xwm txheej.

Ua ntej, nws yog ib qho tseem ceeb kom nkag siab tias graphene yog dab tsi. Graphene yog ob-dimensional khoom ua los ntawm carbon atoms teem nyob rau hauv ib tug hexagonal lattice. Nws muaj zog heev, hnav, thiab muaj cov khoom siv hluav taws xob tshwj xeeb uas ua rau nws muaj txiaj ntsig rau ntau yam kev siv.

Hauv nws daim ntawv ntshiab, graphene tsis muaj cov khoom sib nqus. Txawm li cas los xij, nws muaj peev xwm ua kom paub cov hlau nplaum rau graphene los ntawm doping nws nrog hlau nplaum impurities, xws li hlau los yog cobalt. Qhov no tuaj yeem ua tau los ntawm kev sib txuas cov khoom sib nqus rau hauv cov qauv graphene lattice los yog muab tso rau ntawm qhov chaw ntawm graphene.

Tsis tas li ntawd, graphene kuj tseem tuaj yeem ua kom pom cov khoom sib nqus los ntawm kev siv cov khoom sib nqus. Thaum raug cov hlau nplaum muaj zog, cov khoom siv hluav taws xob hauv graphene lattice tuaj yeem kho lawv cov kev sib tw, tsim kom muaj lub sijhawm sib nqus sib nqus. Cov nyhuv no yog lub npe hu ua quantum Hall effect thiab tau pom nyob rau hauv kev sim nrog graphene.