Lub ntsiab tseem ceeb ntawm cov khoom sib nqus paramagnetic yog tias atoms lossis cov lwg me me muaj cov hluav taws xob sib nqus ntawm lub sij hawm uas tsis tau pab txhawb, thiab yog li ntawd muaj atomic lossis molecular magnetic lub sij hawm. Txawm li cas los xij, tsis muaj lub zog sib txuas ntawm cov atomic sib nqus lub sij hawm (feem ntau sib pauv hloov), yog li lub sij hawm atomic sib nqus yog nyob rau hauv kev sib txawv (chaotic) cov txheej txheem nyob hauv kev cuam tshuam ntawm thermal cuam tshuam, thiab lub sij hawm atomic sib nqus tshem tawm ib leeg tawm thiab muaj tsis muaj hlau nplaum caij. Txawm li cas los xij, thaum raug rau ib qho chaw sib nqus sab nraud, cov sij hawm sib nqus ntawm cov atoms uas thaum xub thawj chaotically nyob hauv thermal cuam tshuam yog ib txhij rau kev txiav txim ntawm qhov chaw sib nqus kom ua rau lawv nyiam nyob rau hauv lub chaw sib nqus thiab thermally ua lawv caj rau chaotically txheej txheem ntawm. Yog li no, cov nyhuv tag nrho yog tias Muaj qee lub caij sib nqus. Qhov no ua rau cov sib nqus sib nqus (qhov sib piv ntawm cov hlau nplaum mus rau lub zog magnetic teb) tus nqi zoo, tab sis tus nqi kuj tseem tsawg heev. Feem ntau, cov khoom sib nqus tau yooj yim ntawm cov khoom siv paramagnetic yog li ntawm ib puas txhiab (10⁻⁵), thiab nws hloov nrog qhov txo qis ntawm qhov kub. Nce ntxiv.
Cov pa luam yeeb nquag muaj: oxygen, nitric oxide, thiab platinum.