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GU Sujie, WAN Jianjie, GUO Na, MA Xinwen. Photoionization of Excited State 3d104p 2P1/2 of Cu[J]. Nuclear Physics Review, 2019, 36(3): 357-366. doi: 10.11804/NuclPhysRev.36.03.357
Citation: GU Sujie, WAN Jianjie, GUO Na, MA Xinwen. Photoionization of Excited State 3d104p 2P1/2 of Cu[J]. Nuclear Physics Review, 2019, 36(3): 357-366. doi: 10.11804/NuclPhysRev.36.03.357
shu

Photoionization of Excited State 3d104p 2P1/2 of Cu

doi: 10.11804/NuclPhysRev.36.03.357
  • 1.

    College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China;

  • 2.

    Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Funds:  National Natural Science Foundation of China(11320101003, 11204243); Scientific Research Foundation of Physics of CPEE NWNU
  • Received Date: 2019-01-29
  • Rev Recd Date: 2019-02-26
  • Publish Date: 2019-09-20
  • The calculation of energy level structures is still a challenge for atomic Cu. In the present work, based on the multiconfiguration Dirac-Hartree-Fock (MCDHF) and relativistic configuration interaction (RCI) methods, three large-scale correlation models have been used to calculate the energies and wavefunctions of the singly excited state 3d104p 2P1/2, the doubly excited states 3d94s(3D)5s 4D3/2,1/2, 3d94s(3D)5s 2D3/2, 3d94s(1D)5s 2D3/2 and the ionic state 3d10 1S0. The results show that the calculated level structures of copper are very sensitive to the choice of finite configuration space. All of the energy differences are less than the existing experimental results by about -0.4 eV between the doubly excited states 3d94s(3D)5s 4D3/2,1/2, 3d94s(3D)5s 2D3/2, 3d94s(1D)5s 2D3/2 and the ionic state 3d10 1S0 with the singly excited state 3d104p 2P1/2, but the calculated resonant electron energies agree well with the experimental results. In addition, according to the radiative and nonradiative transition matrix elements, the Fano parameters q have been calculated for the doubly excited states. Then, the total photoionization cross sections of singly excited state 3d104p 2P1/2 of copper is obtained, where the interference effects can be considered between direct photoionization and photoexcitation autoionization. The resonances 3d94s(3D)5s 4D3/2,1/2, 3d94s(3D)5s 2D3/2, 3d94s(1D)5s 2D3/2 have obvious asymmetrical Fano profiles, which indicates that the interference between photoionization and photoexcitation autoionization has an extremely important influence on the photoionization cross sections near the doubly excited resonances.
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Photoionization of Excited State 3d104p 2P1/2 of Cu

doi: 10.11804/NuclPhysRev.36.03.357
  • 1. College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China;
  • 2. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Funds:  National Natural Science Foundation of China(11320101003, 11204243); Scientific Research Foundation of Physics of CPEE NWNU
  • Received Date: 2019-01-29
  • Rev Recd Date: 2019-02-26
  • Publish Date: 2019-09-20

Abstract: The calculation of energy level structures is still a challenge for atomic Cu. In the present work, based on the multiconfiguration Dirac-Hartree-Fock (MCDHF) and relativistic configuration interaction (RCI) methods, three large-scale correlation models have been used to calculate the energies and wavefunctions of the singly excited state 3d104p 2P1/2, the doubly excited states 3d94s(3D)5s 4D3/2,1/2, 3d94s(3D)5s 2D3/2, 3d94s(1D)5s 2D3/2 and the ionic state 3d10 1S0. The results show that the calculated level structures of copper are very sensitive to the choice of finite configuration space. All of the energy differences are less than the existing experimental results by about -0.4 eV between the doubly excited states 3d94s(3D)5s 4D3/2,1/2, 3d94s(3D)5s 2D3/2, 3d94s(1D)5s 2D3/2 and the ionic state 3d10 1S0 with the singly excited state 3d104p 2P1/2, but the calculated resonant electron energies agree well with the experimental results. In addition, according to the radiative and nonradiative transition matrix elements, the Fano parameters q have been calculated for the doubly excited states. Then, the total photoionization cross sections of singly excited state 3d104p 2P1/2 of copper is obtained, where the interference effects can be considered between direct photoionization and photoexcitation autoionization. The resonances 3d94s(3D)5s 4D3/2,1/2, 3d94s(3D)5s 2D3/2, 3d94s(1D)5s 2D3/2 have obvious asymmetrical Fano profiles, which indicates that the interference between photoionization and photoexcitation autoionization has an extremely important influence on the photoionization cross sections near the doubly excited resonances.

GU Sujie, WAN Jianjie, GUO Na, MA Xinwen. Photoionization of Excited State 3d104p 2P1/2 of Cu[J]. Nuclear Physics Review, 2019, 36(3): 357-366. doi: 10.11804/NuclPhysRev.36.03.357
Citation: GU Sujie, WAN Jianjie, GUO Na, MA Xinwen. Photoionization of Excited State 3d104p 2P1/2 of Cu[J]. Nuclear Physics Review, 2019, 36(3): 357-366. doi: 10.11804/NuclPhysRev.36.03.357
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