Magnetic Knowledge of Magnets

Cov hlau nplaum yuav tswj cov hlau nplaum li cas?
Lub hlau nplaum ruaj khov, raws li lub npe qhia, yog ib yam khoom uas tuaj yeem tswj nws tus kheej cov hlau nplaum ntev ntev yam tsis muaj qhov sib nqus sab nraud. Nyob ntawm cov khoom siv, feem ntau nws tuaj yeem kav ntev txog 10 xyoo, thiab cov hlau nplaum ruaj khov tuaj yeem ua los ntawm cov khoom siv ferromagnetic xws li hlau, npib tsib xee, thiab lwm yam.
Nws cov qauv atomic yog qhov tshwj xeeb, thiab cov atoms lawv tus kheej muaj lub sijhawm sib nqus. Feem ntau, cov pob zeb hauv av no tau teeb tsa hauv qhov tsis sib xws, thiab thaj chaw sib nqus sib cuam tshuam nrog ib leeg kom pom tsis muaj hlau nplaum. Txawm li cas los xij, nyob rau hauv cov kev taw qhia ntawm sab nraud quab yuam xws li magnetic teb, cov molecular kev npaj yuav zoo ib yam, qhia magnetism, feem ntau hu ua hlau nplaum. Hlau, cobalt, thiab npib tsib xee yog cov khoom siv hlau nplaum feem ntau. Yeej, cov hlau nplaum tau muab faib ua cov hlau nplaum ruaj khov thiab cov hlau nplaum mos. Cov hlau nplaum tas mus li ntxiv cov hlau nplaum muaj zog los ua kom qhov sib nqus ntawm cov khoom sib nqus thiab lub angular momentum ntawm electrons teem nyob rau hauv ib tug taag kev taw qhia; Mos magnetism yog qhov sib ntxiv ntawm tam sim no, thiab thaum tam sim no raug tshem tawm, cov hlau mos yuav maj mam poob nws cov hlau nplaum. Magnets tsuas yog ib lo lus dav dav, xa mus rau cov hlau nplaum, thiab lawv cov ntsiab lus tiag tiag yuav tsis tas muaj hlau. Cov hlau ntshiab hlau nws tus kheej tsis muaj cov hlau nplaum ruaj khov, thiab tsuas yog thaum nws nyob ze rau cov hlau nplaum ruaj khov tuaj yeem ua rau cov hlau nplaum. Feem ntau, lwm yam impurity xws li carbon ntxiv rau cov hlau nplaum ruaj khov kom ruaj khov hlau nplaum, tab sis qhov no txo ​​qis kev ywj pheej ntawm cov hluav taws xob thiab ua rau nws nyuaj rau kev siv hluav taws xob. Yog li ntawd, thaum tam sim no dhau mus, lub teeb tsis tuaj yeem teeb. Hlau yog cov khoom sib nqus sib nqus, tab sis ntau lwm yam muaj zog hlau nplaum, Ntau cov hlau nplaum muaj zog yog tsim los ntawm kev sib xyaw neodymium, hlau, boron, thiab lwm yam.