审稿人意见如下：
“several subbands evidently move toward the low energy region, in particular for the electronic states with momentum in the vicinity of Gamma point. The Fermi level is thus shifted down to the valence states. If feasible, it should be interesting to point out which atomic sites do the electrons localize for these subbands.”
我不明白是要我确定电子局域出现在哪个位置，还是要我解释费米能级下移的原因。能带的变化与电子的局域位置又有什么关系呢？理论知识不够，也正在学习，希望大家给点意见，帮忙解决下，先谢谢了
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