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Variational Calculation of Low-energy Positron Life Time in Xe Atoms
Positron Annihilation Bound wavefunction Scattered wavefunction Variational Method
2010/6/30
The least-squares variational method (LSVM) is used for determining trial wavefunctions representing lowenergy positron-xenon elastic scattering, which are used to determine the positron lifetime. The...
利用射频磁控溅射方法制备了低介电常数材料多孔非晶SiOx薄膜,溅射压强从1Pa—3Pa变化,傅立叶变换红外吸收光谱测行x的范围为1≤x≤1.6.同步辐射X射线反射(XRR)测量结果显示了随着溅射压强的增大,薄膜的孔隙率(体积比)从6%上升到24%,同时估计了薄膜的厚度.慢正电子湮没多普勒展宽测量探测了薄膜中的缺陷分布信息,结果显示随着溅射压强的增加,薄膜中的E'中心缺陷增加,其抑制了电子偶素的生成...
Low-Energy Electron Collisions with Ethane
Elastic scattering Polarization effects Ramsauer-Townsend minimum
2010/7/5
We employed the Schwinger multichannel method to compute elastic cross sections for low-energy electron collisions with ethane (C2H6). The calculations were carried out in the static-exchange and stat...
Thermoelectric power and low-field electron mobility in AlxGa1-xN lattice-matched to GaN
Thermoelectric power optical phonon piezoelectric non-parabolicity relaxation-time
2010/4/8
The results of thermoelectric power and electron drift mobility in AlxGa1-xN lattice-matched to GaN are calculated for different temperatures, free-electron concentrations and compositions. The two-mo...
Study of Vacuum Structure by Low-Lying Eigenmodes
of Overlap-Dirac Operator
APE smearing overlap-Dirac operator structures of vacuum instanton liquid model
2007/8/15
2006Vol.46No.3pp.521-526DOI:
Study of Vacuum Structure by Low-Lying Eigenmodes
of Overlap-Dirac Operator
WANG Zi-Qing,1 LÜ Xiao-Fu,1,3,4 and WANG Fan2
1 Department ...