Influence of lateral configurations on the charge transfer between H− ions and Na/Ag(1 1 1) surfaces

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2024-06-29 DOI:10.1016/j.nimb.2024.165456

Aaron Martinez, Jonah Watts, Bogdana Bahrim

引用次数: 0

Abstract

This study investigates the electron transfer during lateral collisions between H⁻ projectiles and Ag(1 1 1) surfaces with Na adsorbates. These interactions aim to probe the nearside region of the adsorbate. Compared to the on-top configuration, the lateral projected density of states reveals strong local effects such as perturbations of energy levels, adsorbate-induced states not identifiable from on-top, and image states enhancement. A study of dynamics reveals that, in addition to the projectile’s distance of closest approach and interaction time with surface, the projectile’s survival is influenced by the balance between electron capture and loss at the start of the exit trajectory.

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横向构型对 H- 离子与 Na/Ag(1 1 1) 表面之间电荷转移的影响

本研究探讨了 H- 射弹与带有 Na 吸附物的 Ag(1 1 1) 表面横向碰撞过程中的电子转移。这些相互作用旨在探测吸附剂的近侧区域。与顶部构型相比，侧面投射的状态密度显示出强烈的局部效应，如能级扰动、从顶部无法识别的吸附剂诱导状态以及图像状态增强。对动力学的研究表明，除了射弹的最近接近距离和与表面的相互作用时间外，射弹的存活还受到出口轨迹开始时电子捕获和损失之间平衡的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms 物理-核科学技术

CiteScore

2.80

自引率

7.70%

发文量

231

审稿时长

1.9 months

期刊介绍： Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.