Lub hlau nplaum ua haujlwm li cas?

atomic qauv
	Yuav ua li cas cov hlau nplaum ua haujlwm yog txiav txim siab los ntawm nws cov qauv atomic tag nrho. Txhua lub atom yog tsim los ntawm cov hluav taws xob tsis zoo uas tig mus ncig zoo protons thiab neutrons (hu ua nucleus), uas yog cov hlau nplaum microscopic nrog rau sab qaum teb thiab sab qab teb ncej.
	Cov hlau nplaum electrons txav ib ncig ntawm cov protons, tsim ib qho orbital magnetic teb. Cov hlau nplaum muaj lub npe hu ua ib nrab ntawm cov hluav taws xob; Hauv lwm lo lus, lawv tsis yog khub zoo li lwm yam khoom siv. Cov electrons no ces kab, uas tsim ib magnetic teb.
	Tag nrho cov atoms ua ke rau hauv pawg hu ua crystals. Cov ferromagnetic muaju ces taw qhia lawv tus kheej mus rau lawv cov ncej hlau nplaum. Ntawm qhov tod tes, nyob rau hauv cov khoom uas tsis yog-ferromagnetic lawv tau random teem rau neutralize txhua yam hlau nplaum lawv yuav muaj.
	Cov txheej txheem ntawm cov crystals yuav ces kab mus rau hauv cov thawj, uas yuav tom qab ntawd ua raws li cov kev taw qhia sib nqus. Qhov ntau qhov taw qhia nyob rau hauv tib txoj kev, lub zog sib nqus yuav ntau dua.
	Thaum cov khoom siv ferromagnetic los rau hauv kev sib cuag nrog cov hlau nplaum, cov thawj hauv cov khoom ntawd sib haum nrog cov npe hauv cov hlau nplaum. Cov ntaub ntawv tsis-ferromagnetic tsis sib haum nrog cov sib nqus sib nqus thiab nyob twj ywm random.
Attraction ntawm ferromagnetic cov ntaub ntawv
	Thaum cov khoom siv ferromagnetic txuas nrog cov hlau nplaum, lub kaw lus kaw yog tsim los ntawm cov hlau nplaum los ntawm sab qaum teb los ntawm cov khoom ferromagnetic thiab tom qab ntawd mus rau sab qab teb ncej.
	Lub attraction ntawm ib tug ferromagnetic khoom rau ib tug hlau nplaum thiab nws muaj peev xwm tuav nws yog hu ua lub zog ntawm attraction ntawm ib tug hlau nplaum. Qhov ntau dua qhov rub lub zog ntawm cov hlau nplaum, cov khoom siv ntau nws tuaj yeem nyiam.
	Lub zog ntawm cov hlau nplaum qhov kev nyiam yog txiav txim siab los ntawm ntau yam sib txawv: Cov hlau nplaum tau npog li cas Txhua yam kev puas tsuaj uas yuav tshwm sim rau saum npoo ntawm cov hlau nplaum, xws li xeb. Lub thickness ntawm cov khoom siv ferromagnetic (nrog rau ib daim ntawm ferromagnetic cov khoom uas nyias dhau lawm yuav ua rau cov hlau nplaum tsis muaj zog vim qhov ntxiab ntawm cov kab hlau nplaum).