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

Photoelectric Effect02:26

Photoelectric Effect

39.6K
When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
39.6K

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

Decoding THz-Driven Dynamic Fingerprints of Ferroelectric Nanotwin Networks.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Minimization of thermal deformation in crystal optics for high-repetition-rate FEL.

Journal of synchrotron radiation·2026
Same author

Transient Terahertz Oscillations During Photoinduced Polarization Topology Reconfiguration in Ferroelectric Superlattices.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

[Case Report of One Family With Coffin-Lowry Syndrome and Literature Review of 28 Cases in China].

Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition·2026
Same author

Terahertz time-domain spectroscopy of materials under high pressure in a diamond anvil cell.

The Review of scientific instruments·2026
Same author

Ultrafast low-temperature metal-insulator interface phonon dynamics and heat transport in a Pt/Gd<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub> heterostructure.

Structural dynamics (Melville, N.Y.)·2025
Same journal

Incoming US science academy chief vows to 'double down' on research.

Nature·2026
Same journal

Author Correction: Synthesis of enantioenriched atropisomers by biocatalytic deracemization.

Nature·2026
Same journal

Electrodeposited self-assembled molecules for perovskite photovoltaics.

Nature·2026
Same journal

Neutrino's nursery found: the 'Shadow Blaster'.

Nature·2026
Same journal

Dementia risk in middle-aged people linked to a blood protein.

Nature·2026
Same journal

Daily briefing: What's really happening with trust in science.

Nature·2026
查看所有相关文章

相关实验视频

Updated: Jan 31, 2026

Blood Flow Imaging with Ultrafast Doppler
05:57

Blood Flow Imaging with Ultrafast Doppler

Published on: October 14, 2020

8.5K

超快的爱因斯坦-德哈斯效应

C Dornes1, Y Acremann2, M Savoini3

  • 1Institute for Quantum Electronics, Physics Department, ETH Zurich, Zurich, Switzerland. dornesc@phys.ethz.ch.

Nature
|January 4, 2019
PubMed
概括
此摘要是机器生成的。

在超快速去磁化中,激光诱导的铁的旋转角动量损失在200 femtosecond内转移到网格中,发射一个应变波. 这揭示了晶格相互作用在秒消磁动态中的关键作用.

更多相关视频

Imaging and Quantification of the Hepatic Vasculature of Mice Using Ultrafast Doppler Ultrasound
07:03

Imaging and Quantification of the Hepatic Vasculature of Mice Using Ultrafast Doppler Ultrasound

Published on: July 19, 2024

1.8K
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

10.2K

相关实验视频

Last Updated: Jan 31, 2026

Blood Flow Imaging with Ultrafast Doppler
05:57

Blood Flow Imaging with Ultrafast Doppler

Published on: October 14, 2020

8.5K
Imaging and Quantification of the Hepatic Vasculature of Mice Using Ultrafast Doppler Ultrasound
07:03

Imaging and Quantification of the Hepatic Vasculature of Mice Using Ultrafast Doppler Ultrasound

Published on: July 19, 2024

1.8K
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

10.2K

科学领域:

  • 凝聚物质物理
  • 超快磁性
  • 旋转动力学

背景情况:

  • 爱因斯坦-德哈斯效应证明了旋转到机械的角动量转换.
  • 超快速去磁包括光激发时<100 fs的磁化损失.
  • 超快解磁过程中的角动量命运尚未完全理解.

研究的目的:

  • 研究激光诱导脱磁过程中角动量转移的时间范围和机制.
  • 确定旋转角动量在 femtosecond 时间尺度上转移的位置.

主要方法:

  • 用5秒时间的X射线衍射探测铁.
  • 分析包括将实验X射线数据与模拟和光学数据相匹配.

主要成果:

  • 大多数自旋角动量在去磁化过程中被转移到子皮秒时间尺度内的晶格中.
  • 一个横向的应变波被发射到散装材料中.
  • 角动量转移发生在200秒的时间尺度上,占自旋角动量的80%.

结论:

  • 网格相互作用在超快的去磁化中起着至关重要的作用.
  • 这些发现阐明了在五秒钟消磁过程中角动量转移的微观机制.