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| In this paper, first-principles calculations within the generalized gradient approximation (GGA) are carried out on the band gaps of zigzag SWNTs (7, 0) (8, 0) (9, 0) and (12, 0). |
中文意思：
摘要本文采用基于广义梯度近似(GGA)的第一性原理方法，对锯齿型单壁破纳米管(7,0)、(8,0)、(9,0)、(12,0)的能带结构和能隙进行理论计算。 |
以下为相关句子列表(点击查看，可以看对应的解释）：
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摘要本文采用基于广义梯度近似(GGA)的第一性原理方法，对锯齿型单壁破纳米管(7,0)、(8,0)、(9,0)、(12,0)的能带结构和能隙进行理论计算。 |
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