A semi-classical model for the charge exchange and energy loss of slow highly charged ions in ultrathin materials

Guo Xun; Fu Yanjun; Zhang Xitong; Wang Xinwei; Chen Yan; Xue Jianming

doi:10.1063/1.5110931

Volume 4 Issue 5

Sep. 2019

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Guo Xun, Fu Yanjun, Zhang Xitong, Wang Xinwei, Chen Yan, Xue Jianming. A semi-classical model for the charge exchange and energy loss of slow highly charged ions in ultrathin materials[J]. Matter and Radiation at Extremes, 2019, 4(5): 054401. doi: 10.1063/1.5110931

Citation:

Guo Xun, Fu Yanjun, Zhang Xitong, Wang Xinwei, Chen Yan, Xue Jianming. A semi-classical model for the charge exchange and energy loss of slow highly charged ions in ultrathin materials[J]. Matter and Radiation at Extremes, 2019, 4(5): 054401. doi: 10.1063/1.5110931

Citation:

Guo Xun, Fu Yanjun, Zhang Xitong, Wang Xinwei, Chen Yan, Xue Jianming. A semi-classical model for the charge exchange and energy loss of slow highly charged ions in ultrathin materials[J]. Matter and Radiation at Extremes, 2019, 4(5): 054401. doi: 10.1063/1.5110931

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A semi-classical model for the charge exchange and energy loss of slow highly charged ions in ultrathin materials

doi: 10.1063/1.5110931

Guo Xun^1
,,
Fu Yanjun¹,
Zhang Xitong^{1, 2},
Wang Xinwei^3
,,
Chen Yan^4
,,
Xue Jianming^{1, 2
,
,}

1.
State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People’s Republic of China
2.
CAPT, HEDPS and IFSA Collaborative Innovation Center of MoE, College of Engineering, Peking University, Beijing 100871, People’s Republic of China
3.
School of Advanced Materials, Shenzhen Graduate School, Peking University, Shenzhen 518055, People’s Republic of China
4.
New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou 510006, People’s Republic of China

Received Date: 2019-05-21
Accepted Date: 2019-06-10
Publish Date: 2019-09-15

Abstract

Abstract

We present a simple and reliable method, based on the over-barrier model and Lindhard’s formula, to calculate the energy loss, charge transfer, and normalized intensity of highly charged ions penetrating through 2D ultrathin materials, including graphene and carbon nanomembranes. According to our results, the interaction between the ions and the 2D material can be simplified as an equivalent two-body collision, and we find that full consideration of the charge exchange effect is key to understanding the mechanism of ion energy deposition in an ultrathin target. Not only can this semiclassical model be used to evaluate the ion irradiation effect to a very good level of accuracy, but it also provides important guidance for tailoring the properties of 2D materials using ion beams.

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References(37)

References

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