Using a simple variation - fitting method , the exciton binding energies of a sawtooth - shaped quantum well are calculated as a function of an electric field , and the explanation of the results is also given 采用一种变分拟合的简单方法计算了电场下锯齿型多量子阱的激子结合能,对计算结果给出了合理的解释
These two phases are separated at a time when the halo concentration parameter c ~ 5 and the binding energy of the halo is approximately equal to that of a singular isothermal sphere with the same circular velocity 肠‘随时间的增长和宇宙的膨胀速率基本一致: ( 2 )在这两个阶段的分界点处暗晕的汇聚因子。
In fact , there are many elements which influence the special character , such as the intensity and frequency of the laser , the binding energy of atom , an additional field and so on 实际上,有许多因素会影响到谐波谱线的具体性质。例如:所加激光脉冲的强度和频率,原子的电离势以及外加的磁场或电场等。
As the number of ag atoms increase , the average distance between the closest atoms in the cu13 - nagn clusters increased monotonously , and the average binding energy of the ground - states decreased monotonously 在cu _ ( 13 - n ) ag _ n团簇中并不表现出明显的偏析现象。原子间的平均距离单调增加,团簇的结合能单调减小。
Dongxu zhao ( condensed matter physics ) directed by prof . dezhen shen and prof . yichun liu zinc oxide ( zno ) is a wide band - gap semiconductor ( 3 . 37 ev at room temperature ) with the high exciton binding energy of 60 mev <中文摘要> = zno是一种宽带隙的半导体材料,室温下它的能隙宽度为3 . 37ev ,激子束缚能高达60mev 。
We process calculations as the following : we calculate the binding energies of excitons in a square quantum - well wire in presence of a magnetic field for finite and infinite potential barrier case respectively A . balandin和s . bandyopadhyay也是利用变分法,采用二能带模型计算了在外加磁场时的量子线中激子的基态束缚能。
A theoretical calculation based on this model is carried out , and the results verify that the vacancies may reduce the mean binding energy of the er atoms , and thus the model is energetically favorable 结果证明与表面空位为硅二聚物所占情况相比,表面空位存在时体系的能量更低。此结果间接证明了铒原子对模型的合理性。
In low - dimension structure , the exciton binding energy will be lager than bulk material because of quantum effects , so excitons play an important role in optical characteristics of low - dimension zno 在低维结构中,由于量子限制效应,激子束缚能会变得更大,因而在低维zno材料中,激子发光在其光学特性中起着举足轻重的作用。
The binding energies calculated with the pts cluster models and pt7 cluster model are 222 kj / mol and 175 kj / mol . respectively . these results agree on the recently calorimetric measurements quite well 计算结果表明: co在pt ( 100 )和pt ( 111 )晶面顶位吸附的结合能分别为222kj mol和175kj mol ,与近期发表的热力学实验数据吻合得很好。
The binding energies and the ground state energies of hydrogen impurity in a lens - shaped quantum dot ( gaas / inl - xgaxas ) under vertical magnetic field using effective mass approximation and variation method have been discussed 利用有效质量近似、变分法,研究了垂直磁场下透镜型量子点( gaas / in1 - xgaxas )掺入类氢杂质后基态能和结合能。
the energy required to separate particles from a molecule or atom or nucleus; equals the mass defect 同义词:separation energy,
百科解释
Binding energy is the mechanical energy required to disassemble a whole into separate parts. A bound system typically has a lower potential energy than the sum of its constituent parts ? this is what keeps the system together.