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北京石油化工学院2026年研究生招生接收调剂公告
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寂寞倾城

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We first consider the electronic properties of the phases which form in nature, noting that although they have been identified experimentally, they may not necessarily be stable (equilibrium) structures. The atomic geometry of rocksalt TaN is shown in Fig. 1(a), along with the electron density of states (DOS) [Fig. 1(b)] which shows clearly that TaN is metallic. The calculated equilibrium volume is 1.0% smaller than experiment. The Ta4N5 phase, depicted in Figs. 1(c)and 1(d), also has the rocksalt structure, but contains an ordered arrangement of Ta vacancies. There are 18 atoms in the unit cell. The calculated equilibrium volume of Ta4N5 is 1.2% smaller than the experimental value. The corresponding DOS
[Fig. 1(e)] exhibits a noticeable dip at EF, suggesting a greater stability as compared to TaN. The electronic structure of these phases was presented and discussed in more detail in our earlier publication (Ref. 10).

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The electronic structure of these phases was presented and discussed in more detail in our earlier publication (Ref. 10).
这些态的电子结构在我们以前发表的文章(出版物)中有详细介绍!
7楼2011-03-04 20:00:01
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寂寞倾城(金币+4, 翻译EPI+1): 2011-03-04 20:32:13
我们首先考虑在自然形态形成相的电子特性。虽然它们在实验上已经确定,他们不一定是稳定的(或者说是平衡)结构。
2楼2011-03-04 19:40:26
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寂寞倾城(金币+4): 2011-03-04 20:32:27
我们首先考虑在自然形态形成相的电子特性。虽然它们在实验上已经确定,他们不一定是稳定的(或者说是平衡)结构。岩盐钽原子的几何架构如图Fig. 1(a)所示,并有其DOS图示[Fig. 1(b)] ,很明显的表明TaN是金属性的。
3楼2011-03-04 19:47:01
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寂寞倾城(金币+4): 2011-03-04 20:32:39
计算出的平衡体积为1.0%,比实验小。在图Fig. 1(c)和Fig. 1(d)所示的Ta4N5阶段,也有岩盐结构, 但包含了一个大的Ta空间有序排列。每个晶胞有18个原子
4楼2011-03-04 19:51:28
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