相关实验视频
Updated: May 31, 2026
08:45
Fabrication of Spatially Confined Complex Oxides
Published on: July 1, 2013
在二维O2网格中对Kondo选的真实空间成像
Ying Jiang1, Y N Zhang, J X Cao
1Department of Physics and Astronomy, University of California, Irvine, CA 92697-4575, USA.
Science (New York, N.Y.)
|July 19, 2011
概括
研究人员在黄金表面上对氧分子中的Kondo共振进行了成像,揭示了本地和非本地Kondo选. 这表明了分子电子云之间的磁化和杂交的集体解锁.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 表面科学是一门学科.
- 量子多体系统是一个量子多体系统.
背景情况:
- 孔道格子系统显示复杂的行为,由于在现场孔道选和现场间合.
- 了解这些相互作用对于开发新型量子材料至关重要.
研究的目的:
- 在一个由氧分子在重建的黄金表面上形成的新的Kondo格子中调查Kondo共振.
- 在原子层面探索分子间合和现场Kondo效应之间的相互作用.
主要方法:
- 使用扫描道显微镜 (STM) 可视化了Kondo共振.
- 在重建的Au(110) - 1×2表面上研究了自组装的磁性氧 (O(2) 分子.
主要成果:
- 在原子尺度上观察到本地和非本地Kondo选的共存.
- 提供了在黄金表面诱导磁化的集体解锁的证据.
- 在近邻氧分子的Kondo云之间展示了局部杂交.
结论:
- 这项研究揭示了一种独特的Kondo网格行为,由黄金上的氧分子驱动.
- 这些发现突显了局部和集体电子现象之间的原子级相互作用.
- 这项工作为控制工程量子系统中的多体物理提供了洞察力.
相关概念视频
03:35Hybridization of Atomic Orbitals II
sp3d and sp3d 2 Hybridization
03:51Molecular Orbital Theory II
Molecular Orbital Energy Diagrams
03:24Hybridization of Atomic Orbitals I
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
01:12Two-Dimensional (2D) NMR: Overview
The 1D NMR spectrum of large and complex molecules like natural products has complicated splitting patterns and overlapping signals, which can be easily interpreted using 2-dimensional (2D) NMR. Unlike 1D NMR, 2D NMR has two frequency axes that provide the coupling information between the nucleus A and nucleus B in a molecule. The process from which 2D spectra are obtained has four steps.
The first step is the preparation period, during which nucleus A is excited with a radiofrequency pulse.
The first step is the preparation period, during which nucleus A is excited with a radiofrequency pulse.
02:35Molecular Orbital Theory I
Overview of Molecular Orbital Theory
02:54Trends in Lattice Energy: Ion Size and Charge
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process: