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

Fermi Level Dynamics01:12

Fermi Level Dynamics

797
The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
797
Theory of Metallic Conduction01:17

Theory of Metallic Conduction

1.8K
The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
1.8K
Ferromagnetism01:31

Ferromagnetism

3.2K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
3.2K
Mohr's Circle for Plane Strain01:18

Mohr's Circle for Plane Strain

1.3K
Mohr's circle is a crucial graphical method used to analyze plane strain by plotting strain on a set of cartesian coordinates, where the abscissa is normal strain ∈ and the ordinate is shear strain γ. Similarly to Mohr’s circle for plane stress, two points X and Y are plotted. Their coordinates are (∈x, -γXY) and (∈Y, γXY), respectively.
Mohr's circle visually represents the strain states under various conditions, which is essential for...
1.3K
Metallic Solids02:37

Metallic Solids

21.0K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
21.0K
Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

681
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
681

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

Reconstructing the Hamiltonian from the local density of states using neural networks.

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

Ferromagnetic superconductivity with excitonic Cooper pairs: Application to Γ-valley twisted semiconductors.

Science advances·2026
Same author

Anti-topological crystal and non-Abelian liquid in twisted semiconductor bilayers.

Nature communications·2026
Same author

Chiral and topological superconductivity in isospin polarized multilayer graphene.

Nature communications·2025
Same author

Pressure-enhanced <i>f</i>-electron orbital weighting in UTe<sub>2</sub> mapped by quantum interferometry.

Communications physics·2025
Same author

Experimental detection of vortices in magic-angle graphene.

Nature communications·2025

相关实验视频

Updated: Feb 20, 2026

Optimized Fabrication Procedure for High-Quality Graphene-based Moir&#233; Superlattice Devices
11:24

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

16.5K

在散装的摩埃尔金属中使用更高维度的铁米学.

Kevin P Nuckolls1, Nisarga Paul1, Alan Chen2

  • 1Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA.

Nature
|February 18, 2026
PubMed
概括

研究人员开发了一种新方法,在热力学平衡下制造高质量的摩尔材料. 这些新型材料表现出复杂的电子特性,并为大规模电子应用提供了潜力.

更多相关视频

Micro/Nano-scale Strain Distribution Measurement from Sampling Moir&#233; Fringes
06:56

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes

Published on: May 23, 2017

12.8K
Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

9.0K

相关实验视频

Last Updated: Feb 20, 2026

Optimized Fabrication Procedure for High-Quality Graphene-based Moir&#233; Superlattice Devices
11:24

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

16.5K
Micro/Nano-scale Strain Distribution Measurement from Sampling Moir&#233; Fringes
06:56

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes

Published on: May 23, 2017

12.8K
Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

9.0K

科学领域:

  • 凝聚物质物理学 凝聚物质物理学
  • 材料科学 材料科学 材料科学
  • 量子材料是一种量子材料.

背景情况:

  • 莫伊尔材料,通常是范德瓦尔斯的异构结构,对于工程量子相至关重要,但通常是远离热力学平衡的合成.
  • 现有的摩尔材料可以研究相关的电子现象,铁电,磁力和超导.
  • 它们的无周期性,复合性晶体性质允许通过超级格子通过无化学变化的调节性质.

研究的目的:

  • 在热力学平衡条件下,引入一种新的方法来合成高流动性摩尔材料.
  • 报告一种新的叶状超网状材料家族,具有可调节的moiré超网状材料.
  • 探索这些散装莫雷金属的复杂电子特性和潜在应用.

主要方法:

  • 在热力学平衡下合成叶状超网材料 (Sr6TaS8) 1+δ(TaS2) 8.
  • 利用轮流的范德瓦尔斯层之间的格子不匹配来产生连贯的莫雷超级格子.
  • 使用量子振荡测量来探测电子费米学和费米表面特征.

主要成果:

  • 发现了一种新的可剥离,不相称的格子,范德瓦尔斯晶体的新家族,表现出moiré超级格子.
  • 在没有化学修饰的合成条件下展示可调节的莫雷超级网.
  • 量子振荡数据揭示了复杂的费米学,在最简单的摩尔金属中,有超过40个不同的费米表面截面面积.

结论:

  • 大量莫雷金属可以编码类似于更高维度超空间晶体的电子特性.
  • 开发的可扩展合成方法对生产用于电子产品的大面积moiré材料具有前景.
  • 这项工作提出了一个新的材料设计概念,用于探索更高维度的现象.