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

The Hall Effect01:30

The Hall Effect

4.8K
Edwin H. Hall, in the year 1879, devised an experiment that could be used to identify the polarity of the predominant charge carriers in a conducting material. From a historical perspective, this experiment was the first to demonstrate that the charge carriers in most metals are negative.
4.8K
Quantum Numbers02:43

Quantum Numbers

53.3K
It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
53.3K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

60.8K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
60.8K
The de Broglie Wavelength02:32

The de Broglie Wavelength

34.2K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
34.2K
π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.8K
An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
1.8K
Magnetic Field Lines01:19

Magnetic Field Lines

6.2K
The representation of magnetic fields by magnetic field lines is very useful in visualizing the strength and direction of the magnetic field. Each of the magnetic field lines forms a closed loop. The field lines emerge from the north pole (N), loop around to the south pole (S), and continue through the bar magnet back to the north pole.
Magnetic field lines follow several hard-and-fast rules:
6.2K

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

Non-Hermitian dynamics in quantum anomalous Hall insulators.

Science advances·2026
Same author

Emergent anisotropic three-phase order in critically doped superconducting diamond films.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Chronic psychological stress disrupts liver homeostasis by dysregulating oxidative phosphorylation via the PI3K/AKT/FoxO3a axis.

iScience·2026
Same author

Corrigendum to "Brinzolamide encapsulated β-cyclodextrin-chondroitin sulfate nanocomplexes anchored chitosan/polycaprolactone nanofibers as an ocular insert for glaucoma treatment" [Mater. Today Bio <b>34</b> (2025) 102179].

Materials today. Bio·2026
Same author

Chronic psychological stress induces pulmonary dysfunction through alveolar macrophage-mediated activation of apoptotic signaling pathways.

International immunopharmacology·2026
Same author

Unconventional polaronic ground state in superconducting LiTi<sub>2</sub>O<sub>4</sub>.

Nature communications·2026

相关实验视频

Updated: Mar 12, 2026

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
10:36

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials

Published on: January 21, 2016

11.4K

可视化量子异常霍尔效应的分解.

G M Ferguson1, Run Xiao2, Anthony R Richardella2

  • 1Department of Physics, Laboratory of Atomic and Solid-State Physics, Cornell University, Ithaca, NY 14853.

Proceedings of the National Academy of Sciences of the United States of America
|March 10, 2026
PubMed
概括

了解拓保护的分解是关键. 这项研究揭示了电子加热导致磁拓绝缘体中的量子异常霍尔效应分解,低温下受热放松不足的限制.

关键词:
凝聚物质物理学 凝聚物质物理学磁力成像技术的使用量子异常的霍尔效应物质的拓相物质的拓相.

更多相关视频

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

9.6K
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.4K

相关实验视频

Last Updated: Mar 12, 2026

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
10:36

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials

Published on: January 21, 2016

11.4K
Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

9.6K
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.4K

科学领域:

  • 凝聚物质物理学 凝聚物质物理学
  • 拓学是材料科学领域的专业.

背景情况:

  • 拓物质具有强大的特性,但其分解机制尚不清楚.
  • 量子异常霍尔效应 (QAHE) 是一个关键的拓现象.
  • 了解QAHE的分解对于实际应用至关重要.

研究的目的:

  • 为了研究量子异常霍尔效应 (QAHE) 的电流诱导分解.
  • 确定导致拓保护丧失的潜在机制.
  • 建立在拓绝缘体中能量放松的诊断框架.

主要方法:

  • 利用磁图像和全球电力传输测量.
  • 可视化电流密度和局部消散.
  • 使用局部磁化变化作为电子温度的代理.

主要成果:

  • 在电气接触点附近的局部热点出现散射.
  • 由于加热,电子与格子脱离平衡.
  • 量子化QAHE的分解是由电子加热控制的.
  • 在千基凯尔文温度下消失的热放松强度限制了QAHE的强度.

结论:

  • 电子加热是磁拓绝缘体中QAHE分解的主要原因.
  • 在低温下能量放松性差,损害了拓保护.
  • 结果为诊断能量放松和增强拓 robustness提供了一个框架.