Positron binding in chloroethenes: Modeling positron-electron correlation-polarization potentials for molecular calculations
Positron binding in chloroethenes: Modeling positron-electron correlation-polarization potentials for molecular calculations
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氯乙烯中的正电子结合:模拟正电子-电子相关-极化电位以进行分子计算
DOI:
10.1103/physreva.102.052830
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
M. Tachikawa
中科院分区:
文献类型:
--
作者:
H. Suzuki;T. Otomo;R. Iida;Y. Sugiura;T. Takayanagi;M. Tachikawa
Positron binding energies and annihilation spectra are calculated using the positron-electron correlation-polarization potential model for a series of six chloroethene molecules. From detailed analysis of the positron densities and positron-molecule interactions, it was found that the positron is attracted by both the potential well around the negative end of the dipole moment and theelectrons of the C=C double bond. The positron annihilation spectra were simulated using the Feshbach resonance widths, which can be calculated from the couplings between the positron motion and vibrational motion. The importance ofelectrons in positron binding is discussed in terms of the calculated resonance widths.
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