在带隙附近存在四个表面态带，其中的两个占有表面态带已由价带的同步辐射光电子能谱实验得到证实。
There are four surface state bands in the gap. Among them, two occupied surface state bands have been confirmed by valence band spectra of synchrotron radiation photoelectron spectroscopy.
用该态模型解释了氮化物产生高密度表面态的原因和深表面能级与较浅的瞬态电流激活能间的矛盾。
This new two dimensional surface states model explains the origin of surface states and the contradiction between deep surface levels and the low activation energy of a transient current.
利用X射线衍射、X射线光电子能谱和高锰酸钾分光光度法，对铁氧体粉末的微观结构、表面原子信息和锰的平均价态进行了研究。
The microstructure, the surface atoms and the average manganese valence were investigated by XRD, X-ray photoelectron spectrum(XPS)and spectrophotometric method with potassium permanganate.
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