掺杂

The study of acceptor Ga open-tube diffusion in SiO2/Si has been carried for several decades, whose pursuing was only to get the diffused surface of high uniformity and reproducibility and impurity distribution in Si which can improvethe electrical performance of the devices, but the various manifestation of Ga segregation effect at the SiO2-Si internal interface and the dynamic intendancy of the impurity concentration variability have not been reported.

关于受主杂质Ga在SiO_2／Si系统进行开管掺杂的研究已有几十年的历史，研究的内容与追求的目标主要集中在如何获得高均匀性、重复性的扩散表面和提高器件电学性能的硅体内杂质分布形式，而对Ga在SiO_2-Si内界面上分凝效应的各种表现，以及由此造成的近硅表面杂质浓度动态变化趋势尚未见报导。

The effects of lightly cation doping and electrochemical oxygen intercalation were investigated in La2CuO4+δ system.

研究了低浓度掺杂和电化学插氧对La2CuO4+δ系统的磁行为和相分离的影响。

Invariability of the rate law and activation energy of the decomposition on doping suggests that the complex behavior is not due to a change of mechanism.

不变性率法和活化能分解掺杂认为，复杂的行为，是不是因为要改机制。

In the view of ionization energy, K element can be excluded.

综合考虑，Na作为ZnO的p型掺杂元素较好。

In group-V elements, the calculated acceptor ionization energy of N is 0.31 eV, which is much smaller than that of P (0.77 eV) and As (0.89 eV), and the acceptor formation energy of N is lowest among them.

在Ⅴ族元素当中，计算出N的受主电离能为0.31eV，远小于P(0.77eV)和As(0.89eV)，并且N的受主形成能在这三种元素当中也是最小的，因此可以说N是Ⅴ族元素中比较理想的p型掺杂元素。

This model,close to experiment,approximates normal model due to the ionization increasing at h...

同时为了充分利用埋沟器件体内沟道的优势，对埋沟掺杂的浓度和深度也进行了合理的设计。

Study of radiative lifetime s of excited levels of the singly ionized Kr atom

研究了Eu3+掺杂铌硅玻璃的5D0发射光谱，其激发谱中7F0 5D2声子边带，荧光窄化谱及5D0能级寿命。

The electrochromic layer and the ionized conductance layer are doped with oxide and metal respectively,which highly improve the characters of response and chromic transitivity of the electrochromic apparatus.

本文论述采用混合氧化物掺杂的新方法，对电致变色层和离子导电层分别掺入氧化物和金属，使电致变色器件响应速度、增大着色透过率变化等方面的特性得到很大改善。

Tounderstand its superconductivity, it is essential to study the bondstructure and electronic states in charged C〓. Based on a tight- binding model and the group analysis, we depict in detail the bondstructure and electronic states of charged C〓, and explain the split ofenergy levels and irreducible representation.

富勒球状碳家族的发现已在化学和物理学中形成了新的研究领域，特别是碱金属掺杂的〓还是Tc较高的超导体，国内外已形成了〓的研究热潮，实验表明，C〓超导体主要来源于电子〓声子相互作用，这要求对C〓的电子态和晶格振动有深入的研究。

The completely diagonalized Hamiltonian matrices of 3d2/3d8 ion configuration in the trigonal symmetry have been established by irreducible representation method. Taken into account the influence of the spin-spin coupling interactions omitted in previous publications, the spectra and the constants of crystal structure and zero-field splitting parameters of CsNiCl3 crystal and CsNiCl3: Mg2+ crystal are calculated and the influence of the doping to the spectra, the constants of crystal structure, zero-field splitting parameters and Jahn-Teller effect are studied. The results show that doping can change the structure of crystal which brings about the changes in the spectra and zero-field splitting parameters as well as Jahn-Teller effect.

应用不可约张量理论构造了三角对称晶场中3d2/3d8态离子的45阶可完全对角化的微扰哈密顿矩阵，在考虑了以前工作中被忽略的自旋-自旋耦合作用的基础上计算了CsNiCl3晶体和CsNiCl3：Mg2+晶体的基态能级、晶体结构、零场分裂参量和Jahn-Teller效应，研究了掺入Mg2+对CsNiCl3晶体的光谱、零场分裂参量及Jahn-Teller效应的影响和自旋单重态对基态能级的贡献，发现掺杂使得晶体结构产生畸变，从而改变晶体光谱的精细结构和零场分裂参量，不改变Jahn-Teller效应的分裂规律但改变分裂的大小。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。