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A new solution is obtained for Lamé's equation
in the form of a perturbation seriesabout k = 0; numerical accuracy appears to be high when v ismoderate and k not too close to 1, so that the solution is ofpractical value in problems involving elliptic cones or infinitesectors. 相似文献
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We present high-precision non-relativistic variational calculations of bound vibrational—rotational state energies for the H+ 2 and D+ 2 molecular ions in each of the lowest electronic states of Σ g , Σ u , and Π u symmetry. The calculations are carried out including coupling between Σ and Π states but without using the Born—Oppenheimer or any adiabatic approximation. Convergence studies are presented which indicate that the resulting energies for low-lying levels are accurate to about 10?13. Our procedure accounts naturally for the lambda-doubling of the Π u state. 相似文献
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THREE-DIMENSIONAL FLOW IN A POROUS CHANNEL 总被引:1,自引:0,他引:1
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本文先后用光致发光、核磁共振和电子自旋共振研究了单晶硅中硅氢键和氢致缺陷的性质。光致发光谱表明硅氢键引起了大量非辐射中心。观测和探讨了电子自旋共振测量与样品平均厚度的关系。本文克服了真空热处理中氢从表面扩散的困难,并避免了样品平均厚度大于1.00mm和小于0.85mm给电子自旋共振带来的困难,测得分别在纯氢气氛和氩气氛生长的单晶硅每立方厘米电子自旋数。对比二者,我们估算出氢的数量为4×1016/cm3,而硅氢键分离激活能约为0.1eV。前者与文献[6]和[10]符合得很好,后者比文献[11]测定的沉淀激活能低一个数量级。
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