Study of MgO (111) Charging Phenomena Using Scanning Electron Microscopy and Atomic Force Microscopy

IF 0.9 4区物理与天体物理 Q4 PHYSICS, CONDENSED MATTER

Physics of the Solid State Pub Date : 2024-05-13 DOI:10.1134/S1063783423600085

Aicha Boughariou, Osama Qays Abdullah, Guy Blaise

引用次数: 0

Abstract

In this article we have studied, using the Scanning Electron Microscopy SEM LEO 440, the surface electrical properties of MgO (111) irradiated with 30 keV electrons. The study of the evolution of the secondary electronic emission of MgO (111) shows that \(\ln \sigma \) increases and reaches a value lower than zero. After an injection of 5000 pC, we observe a pseudo mirror, which is due to a very negative surface potential. Finally, we have shown the very high stability of charges within MgO (111) thanks to the use of Atomic Force Microscopy coupled with Scanning Electron Microscope. We can then conclude that MgO (111) is a good trapping insulator.

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利用扫描电子显微镜和原子力显微镜研究氧化镁（111）带电现象

摘要本文使用扫描电子显微镜 SEM LEO 440 研究了用 30 keV 电子辐照的氧化镁（111）的表面电特性。对氧化镁（111）二次电子发射演变的研究表明，\（\ln \sigma \）会增加并达到一个低于零的值。注入 5000 pC 后，我们观察到一个伪镜，这是由于表面电势非常负所致。最后，通过使用原子力显微镜和扫描电子显微镜，我们展示了氧化镁（111）内部电荷的高度稳定性。因此，我们可以得出结论：氧化镁（111）是一种良好的捕获绝缘体。

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

Physics of the Solid State 物理-物理：凝聚态物理

CiteScore

1.70

自引率

0.00%

发文量

审稿时长

2-4 weeks

期刊介绍： Presents the latest results from Russia’s leading researchers in condensed matter physics at the Russian Academy of Sciences and other prestigious institutions. Covers all areas of solid state physics including solid state optics, solid state acoustics, electronic and vibrational spectra, phase transitions, ferroelectricity, magnetism, and superconductivity. Also presents review papers on the most important problems in solid state physics.