Ma elekitironi ndi mtundu wa tinthu tating'ono tomwe timakhala ndi misa yambiri komanso yoyipa. Ikhoza kuchita mitundu iwiri yoyenda; imodzi ndiyo kuyenda panjira yozungulira phata lake, ndipo inayo ndi yozungulira phata lodutsa pakati pake. Popeza kusuntha kwa ma electron kumapanga mphindi, mafunde ndi maginito amapangidwa panthawi ya kuyenda. Mu gawo lokhazikika la maginito H, mphindi ya maginito ya electron imakhala ngati ndodo yaing'ono ya maginito kapena singano. Popeza kuti nambala ya spin quantum ya electron ndi 1/2, electron ili ndi maulendo awiri okha m'munda wa maginito wakunja: imodzi ikufanana ndi H, yofanana ndi mphamvu yochepa, mphamvu ndi -1 / 2gβH; imodzi ndi yotsutsana ndi H, yofanana ndi mphamvu yapamwamba, mphamvu ndi + 1/2gβH, ndipo kusiyana kwa mphamvu pakati pa magulu awiriwa ndi gβH. Ngati kumbali yozungulira kwa H, mafunde amagetsi a frequency v amawonjezedwa kuti akwaniritse mkhalidwe wa hv=gβH, ma elekitironi otsika kwambiri amatenga mphamvu yamagetsi yamagetsi ndikulumphira kumlingo wapamwamba kwambiri, womwe umatchedwa kuti paramagnetic resonance yamagetsi. .