CAJ | 학술논문

在一维晶格中，若电子波矢忌落在布里渊区边界k=±（nπ／α）时，电子将遭受到与布里渊区边界平行的晶面族的反射，由于在布里渊区边界散射波很强，满足布拉格全彦射的条件，此时微扰论不再适用，须用简并微扰法来处理电子的能带分布。
재일유정격중，약전자파시기락재포리연구변계k=±（nπ／α）시，전자장조수도여포리연구변계평행적정면족적반사，유우재포리연구변계산사파흔강，만족포랍격전언사적조건，차시미우론불재괄용，수용간병미우법래처리전자적능대분포。
If electronic wave vector drops on brillouin zone boundary of one-dimensional crystal lattice, elec tron will suffer to the reflection of crystal plane family which is parallel to brillouin zone boundary. Be cause brillouin zone boundary scattered wave is very strong, which meets the conditions of bragg total re flection, at this time, perturbation theory is no longer suitable, and degenerate perturbation theory is used to dealing with electronic band distribution.