Taw qhia rau paramagnetism
Paramagnetism yog hais txog qhov tsis muaj zog sib nqus cov lus teb ntawm cov khoom siv rau cov chaw sib nqus. Piv txwv, cov khoom siv sib nqus tau yooj yim k=M / H (M thiab H yog qhov ua kom muaj zog thiab muaj zog sib nqus ua ntu zus). Los ntawm qhov kev sib raug zoo no, lub sib nqus sib nqus k yog qhov zoo, uas yog, kev coj ntawm cov hlau nplaum yog tib yam li lub zog sib nqus, thiab tus nqi yog 10 －6-10-10 kev txiav txim ntawm qhov ntau.
Qee cov atomic nuclei (xws li 1H, 7Li, 11B, 13C, 17O, thiab lwm lub zog) muaj lub sijhawm sib nqus, uas yuav tsim cov paramagnetism nyob rau hauv kev ua haujlwm ntawm lub chaw sib nqus, tab sis lawv cov paramagnetic qhov cuam tshuam yog ntau me dua li kev txhawb nqa ntawm cov khoom siv hluav taws xob rau paramagnetic, tsuas yog 10 －6-10-10 kev txiav txim ntawm qhov ntau. Yog li no, thaum tham txog qhov paramagnetic zog ntawm teeb meem, cov yam ntxwv paramagnetic ntawm cov tub ntxhais tuaj yeem tsis quav ntsej.