Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

X-ray Crystallography02:18

X-ray Crystallography

26.5K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
26.5K
Determination of Crystal Structures01:29

Determination of Crystal Structures

11
In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...
11

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Water adsorption on a model silicate surface: wollastonite (100).

Nanoscale·2026
Same author

AFM imaging reveals the unreconstructed α‑Al<sub>2</sub>O<sub>3</sub>(0001) surface to be inhomogeneous and rough.

Nature communications·2026
Same author

CO on a Rh/Fe<sub>3</sub>O<sub>4</sub> single-atom catalyst: high-resolution infrared spectroscopy and near-ambient-pressure scanning tunnelling microscopy.

Faraday discussions·2026
Same author

Total Variation-Based Image Decomposition and Denoising for Microscopy Images.

Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·2026
Same author

Molecular Views of Mineral Carbonation: Reaction of CO<sub>2</sub> with the Wollastonite (100) Surface.

ACS nano·2026
Same author

Platinum surface oxides govern the cathodic overpotential of the oxygen reduction reaction.

EES catalysis·2026
Same journal

Modeling thermal transport in AlN/GaN superlattices and heterostructures with machine-learned force fields.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Interband transition orbit probed in de Haas-van Alphen oscillations in the (double) Dirac semimetal NbTe<sub>4</sub>.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Highly coarse-grained polarisable water models for mesoscopic simulations.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Ultrafast carrier dynamics in high-density photo-doped MoS<sub>2</sub>: monolayer vs multilayer.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Correlation-driven d-wave superconducting dome from pseudogap spectral reconstruction.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Chiral phonon-mediated superconductivity in alkali-doped fullerides: A unified framework connecting molecular superconductors to two-dimensional chiral superconductivity.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
查看所有相关文章

相关实验视频

Updated: Feb 28, 2026

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
07:24

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis

Published on: May 10, 2021

6.9K

对定量低能电子衍射的提高可靠性因子.

Alexander M Imre1, Lutz Hammer2, Ulrike Diebold3

  • 1Institute of Applied Physics, TU Wien, Wiedner Hauptstr. 8-10, Vienna, 1040, Austria.

Journal of physics. Condensed matter : an Institute of Physics journal
|February 26, 2026
PubMed
概括
此摘要是机器生成的。

一个新的度量,RS,改进了定量低能电子衍射 (LEED I(V)) 表面结构分析. 这种RS度量比传统的Pendry提供了一个更可靠的优化目标.

关键词:
在LEED中,我们学习了LEED.这就是R因子的R因子.表面结构 表面结构

更多相关视频

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

8.1K
Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
10:12

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples

Published on: June 19, 2018

9.6K

相关实验视频

Last Updated: Feb 28, 2026

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
07:24

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis

Published on: May 10, 2021

6.9K
Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

8.1K
Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
10:12

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples

Published on: June 19, 2018

9.6K

科学领域:

  • 表面科学是一门学科.
  • 材料科学 材料科学 材料科学
  • 凝聚物质物理学 凝聚物质物理学

背景情况:

  • 量化低能电子衍射 (LEED I(V)) 通过分析电子衍射强度作为电子能量的函数来确定表面结构至关重要.
  • 目前的分析依赖于优化实验和计算强度之间的协议,通常使用Pendry的RP度量.
  • 德里的RP度量有显著的局限性,包括对噪声和强度偏移的敏感性,并且可以产生对协议的错误阳性.

研究的目的:

  • 引入一个修改后的RS度量作为对Pendry的RP进行LEED I(V) 分析的优越替代方案.
  • 解决RP的缺点,例如它的噪音性质和易受轻微数据变化的敏感性.
  • 在不完美的实验条件下,评估RS与RP和RZJ相比的性能.

主要方法:

  • 开发和实施一个修改的RS协议度量标准,用于LEED I(V) 数据分析.
  • 对RS,Pendry的RP和Zanazzi-Jona的RZJ指标进行比较分析.
  • 使用具有引入不完美的实验LEED I(V) 数据进行优化模拟.

主要成果:

  • 拟议的RS指标有效地取代了RP,克服了其在优化和灵敏度方面的局限性.
  • 在引导优化向正确的表面结构方面,RS表现出与RP相当或更高的性能,即使有杂的实验数据.
  • 在处理不完美的实验数据时,RZJ度量被发现比RS和RP效率低.

结论:

  • RS度量为使用LEED I(V) 的定量表面结构确定提供了更强大和可靠的方法.
  • RS为优化提供了更好的目标函数,降低了错误结构赋值的可能性.
  • 这一进步提高了材料科学和表面物理学中的表面结构分析的精度和可靠性.