Kub ntawm Neel qhov kub ntawm lub sijhawm sib nqus spontaneously align antiparallel thiab net magnetization ntawm cov khoom yog xoom vim tias tus neeg sib nqus lub sijhawm nyob rau hauv sublattices tshem tawm [4]. Cov khoom hloov pauv hloov nyob ib puag ncig Neel qhov kub thiab txias raws li pom hauv daim duab 4.
Néel kub piav qhia yog dab tsi?
Lub npe hu ua Néel qhov kub thiab txias tau raug hu ua tom qab nws tus neeg nrhiav pom Louis Néel, tus kws kho mob Fab Kis uas tau txais Nobel nqi zog xyoo 1970.
Yuav ua li cas sib nqus susceptibility nrog kub?
Paramagnetic susceptibility yog inversely proportional rau tus nqi ntawm qhov kub thiab txias. Qhov kub thiab txias ua rau ntau dua thermal co ntawm atoms, uas cuam tshuam nrog kev sib nqus ntawm cov dipoles.
Dab tsi tshwm sim saum Néel kub?
Saum toj no qhov ntsuas kub hu ua Néel kub,cua sov ua kom puas tsuaj rau kev sib piv, thiab cov khoom tom qab ntawd dhau los ua paramagnetic.
Néel thiab Curie kub yog dab tsi?
Qhov sib txawv tseem ceeb ntawm Curie kub thiab Neel kub yog qhov kub ntawm Curie yog qhov kub ntawm cov khoom uas qee yam khoom poob lawv cov khoom sib nqus mus tas li whereas Neel kub yog qhov kub siab tshaj qhov uas qee yam antiferromagneticCov ntaub ntawv dhau los ua paramagnetic.
