Excitation effect of 
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 electrons on the electronic energy loss of energetic protons colliding with a Zn atom

Zhao, Xu-Dong; Mao, Fei; Tang, Shuangyang; Gao, Cong-Zhang; Wang, Feng; Zhang, Feng-Shou

doi:10.1103/physreva.101.062705

Cited by 2 publications

(3 citation statements)

References 39 publications

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“…in this study of Al nanosheets. Our results are also consistent with other theoretical calculations for different targets, 39,41–43 establishing our confidence to make further detailed analysis. By comparing with the results of bulk Al in ref.…”

Section: Introductionsupporting

confidence: 91%

“…, real-space grid and plane-wave or atomic orbital basis. To our knowledge, real-space grids has been successfully applied to the S e of protons colliding with a Zn atom 42 and He ions in GaN thin film. 69 Plane-wave basis has found applications in the study of S e of protons in liquid water, 35 proton-irradiated Al sheets 40 and the lithium ions in diamond.…”

Section: Methods and Computational Detailsmentioning

confidence: 99%

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Effects of semicore electrons on stopping power in helium-irradiated aluminum nanosheets

Pang¹,

Wang²,

Sun³

et al. 2023

Phys. Chem. Chem. Phys.

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Section: Introductionsupporting

confidence: 91%

Section: Methods and Computational Detailsmentioning

confidence: 99%

Effects of semicore electrons on stopping power in helium-irradiated aluminum nanosheets

Pang¹,

Wang²,

Sun³

et al. 2023

Phys. Chem. Chem. Phys.

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“…Recently, some achievements have been made in simulating ion irradiation using TDDFT theory [26][27][28][29]. The electronic stopping ability of low-speed ions in Ge [30], and the effect of d electrons on the energy loss in irradiated targets have been explored [31,32].…”

Section: Introductionmentioning

confidence: 99%

Asynchronous propagation of atomic force and excited electronic charge in GaAs under proton irradiation

Shi,

Deng,

Feng

2024

J. Phys.: Condens. Matter

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The studies for the interaction of energetic particles with matter have greatly contributed to the exploration of material properties under irradiation conditions, such as nuclear safety, medical physics and aerospace applications. In this work, we theoretically simulate the non-adiabatic process for GaAs upon proton irradiation using time-dependent density functional theory, and find that the radial propagation of force on atoms and the excitation of electron in GaAs are non-synchronous process. We calculated the electronic stopping power on proton with the velocity of 0.1–0.6 a.u., agreement with the previous empirical results. After further analyzing the force on atoms and the population of excited electrons, we find that under proton irradiation, the electrons around the host atoms at different distances from the proton trajectories are excited almost simultaneously, especially those regions with relatively high charge density. However, the distant atoms have a significant hysteresis in force, which occurs after the surrounding electrons are excited. In addition, hysteresis in force and electron excitation behavior at different positions are closely related to the velocity of proton. This non-synchronous propagation reveals the microscopic dynamic mechanism of energy deposition into the target material under ion irradiation.

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Excitation effect of d electrons on the electronic energy loss of energetic protons colliding with a Zn atom

Cited by 2 publications

References 39 publications

Effects of semicore electrons on stopping power in helium-irradiated aluminum nanosheets

Effects of semicore electrons on stopping power in helium-irradiated aluminum nanosheets

Asynchronous propagation of atomic force and excited electronic charge in GaAs under proton irradiation

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