Qhov sib txawv ntawm qhov siab tshaj plaws ua haujlwm kub thiab Curie kub

Cov neeg siv khoom siv hlau nplaum feem ntau tsis meej pem cov ntsiab lus ntawm Max. Ua hauj lwm kub Tw thiab Curie Temperature Tw ntawm cov hlau nplaum ruaj khov. Hauv kev muaj tiag, Max. Ua Haujlwm Kub thiab Curie Temperature Tc yog ob lub tswvyim sib txawv.

Cov cwj pwm ntawm cov khoom siv hlau nplaum tuaj yeem muab faib ua ferromagnetism, ferritemagnetism, anti-ferromagnetism, paramagnetism, thiab diamagnetism, ces cov hlau nplaum tas mus li yog cov khoom siv ferromagnetc. Rau cov khoom siv ferromagnetic, thermal oscillation ntawm lub hauv paus ntsiab lus yuav ua rau hnyav zuj zus nrog qhov kub thiab txias, tom qab ntawd kev sib haum xeeb ntawm micro sib nqus dipole lub sijhawm nyob rau hauv cov khoom sib nqus mus tas li maj mam cuam tshuam. Yog li, sib nqus polarization J poob nrog nce kub hauv macroscopic. Sib nqus polarization J yuav txo qis mus rau xoom thaum qhov kub siab tshaj qhov kub thiab txias, tom qab ntawd cov khoom sib nqus mus tas li hloov mus rau hauv lub xeev paraferromagnetism thiab pib poob lawv cov hlau nplaum. Kev hloov pauv kub ntawm ferromagnetism thiab paramagnetism feem ntau hu ua Curie Temperature lossis Curie point.

Hom hlau nplaum	Ferromagnetism	Ferrimagnetism	Anti-ferromagnetism	Paramagnetism	Diamagnetism
Magnetism cwj pwm	Atoms muaj lub sijhawm sib nqus sib nqus sib nqus.	Atoms muaj anti-parallel aligned magnetic moments.	Atoms muaj kev sib xyaw ua ke thiab tiv thaiv kev sib txuam sib nqus lub sijhawm.	Atoms muaj randomly oriented magnetic moments.	Atoms tsis muaj lub sijhawm sib nqus.
Yam khoom	Fe, Co, Ni, Gd, Tb, Dy element, thiab lawv cov alloys lossis intermetallic compounds, xws li FeSi, NiFe, CoFe, SmCo, NdFeB, CoCr, thiab CoPt.	Ntau yam khoom siv ferrite. Intermetallic tebchaw muaj xws li hnyav tsis tshua muaj ntiaj teb cov ntsiab lus thiab hlau los yog cobalt, xws li TbFe.	3d hloov hlau Cr thiab Mn. Rare ntiaj teb Nd, Sm, Eu. Qee cov alloys thiab cov tebchaw zoo li MnO thiab MnF2.	O2, Pt, Rh, Pd, Be, Mg, Ca.	Cu, Ag, Aw. C, Si, Ge, -Sn. N, P, As, Sb, Bi. S, Te, Se. Fe, Cl, Br, I. He, Ne, Ar, Kr, Xe, Rn.

Max. Ua Haujlwm Kub, tseem hu ua Max. Kev khiav hauj lwm kub, yog ib tug tshwj xeeb kub uas sib nqus kev ua tau zoo ntawm cov khoom sib nqus mus tas li yuav txo tau qee qhov kev sib piv nrog rau chav tsev kub. Max. Ua haujlwm kub ntawm cov hlau nplaum ruaj khov yog qhov qis dua nws qhov ntsuas kub Curie. Siv sintered Neodymium hlau nplaum ua piv txwv, xws li Max. Ua haujlwm Kub lossis Curie Kub tuaj yeem txhim kho tau zoo los ntawm kev ntxiv Cobalt (Co), Gallium (Ga), thiab hnyav lub ntiaj teb tsis tshua muaj Dysprosium (Dy) lossis Terbium (Tb). Ib sab Curie Temperature, Max. Ua hauj lwm kub ntawm txhua yam khoom siv hlau nplaum tas mus li tseem cuam tshuam los ntawm nws txoj kev coercivity, ua haujlwm nyob rau hauv magnetic circuit. Tib hlau nplaum muaj qhov sib txawv kiag li Max. Ua hauj lwm kub nyob rau hauv txawv daim ntawv thov.