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1)  perturbation method of tight-binding approximation
紧束缚近似微扰法
1.
The perturbation method of tight-binding approximation is expounded,and the relation of propagation constant and angular spectrum of fields of waveguide is calculated.
紧束缚近似微扰法计算了阵列波导的传播常数与输入光角谱的关系,由此计算出传播常数的带宽。
2)  tight-binding approximation
紧束缚近似
1.
By using tight-binding approximation,all kinds of s in gle-walled carbon nanotubes are simulatedly heated from 300 to 4 000 K,and the ir stability is studied.
运用紧束缚近似分子动力学模型,模拟研究了各种单壁碳纳米管(SWCNTs)在300~4 000 K范围内的热稳定性。
2.
We have developed a new approach to calculate the electronic structure of zinc-blend CdS quantum dots under the frame of tight-binding approximation (TBA), which is compared with the effective mass approximation (EMA).
在紧束缚近似下发展了一种新的计算方法 ,计算了闪锌矿结构CdS量子点的电子结构 ,并与有效质量近似作了比较 。
3)  tight binding approximation
紧束缚近似
1.
This paper represents the band structure of Zigzag carbon nanotubes by using of tight binding approximation method, analyzes the energy band structure and explains qualitatively the electric propertie
用紧束缚近似方法给出锯齿形碳纳米管的能带,对其能带结构进行了分析,并对其电学性质作出定性的解释。
2.
One dimentional tight binding approximation and Green function method are used to investigate the influence of a substitutional impurity atom over H chemisorption which is on the surface of ZnO/Ni system.
本文在紧束缚近似下,利用格林函数方法和ES化学吸附理论研究杂质对H在反担载催化剂ZnO/Ni表面化学吸附的影响。
4)  empirical tight-binding
经验紧束缚近似
1.
The deposition behavior of silicon adatom on the reconstructed Si(100) surface with single-layer step and kink has been simulated by the empirical tight-binding method.
采用经验紧束缚近似方法计算p(2×2)重构硅(100)表面单层台阶及纽结处的平衡结构并模拟单个硅原子在其上的沉积行为。
2.
5ML hydrogenated Si(100) surface are simulated by empirical tight-binding (ETB) method.
采用经验紧束缚近似(empiricaltight binding)方法模拟了Si(100)表面0。
5)  semi-classical tight-binding approximation
半经典紧束缚近似
6)  tight-bonding method
紧束缚法
1.
The effects of the external magnetic field on the energy gap of carbon nanotubes were investigated by using the tight-bonding method.
用紧束缚法研究了单壁碳纳米管在轴向磁场下费米能级附近电子性质的变化规律。
补充资料:紧束缚近似
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性质:能带计算的近似方法之一。与分子轨道理论相似,紧束缚近似从原子轨道波函数出发,经线性组合构成晶体轨道的波函数。波函数系数的选用考虑了晶体的周期性,所构成的周期性波函数也称做布洛赫函数。从能带的计算中,将能够得到在动量k空间中晶体波函数的分布和所对应的本征值。从而能够了解能带在k空间的分布和能态密度的分布。紧束缚近似与化学家所熟悉的分子轨道理论是完全一致的,从中可以了解到哪些能带主要是由阴离子的p轨道构成,哪些是由过渡金属离子的d轨道构成,从而使我们对固体中的化学键有一个全面的了解。

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