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関連する概念動画

The Retina01:32

The Retina

The retina is a layer of nervous tissue at the back of the eye that transduces light into neural signals. This process, called phototransduction, is carried out by rod and cone photoreceptor cells in the back of the retina.
Gyroscope01:02

Gyroscope

A gyroscope is defined as a spinning disk in which the axis of rotation is free to assume any orientation. When spinning, the orientation of the spin axis is unaffected by the orientation of the body that encloses it. The body or vehicle enclosing the gyroscope can be moved from place to place, while the orientation of the spin axis remains the same. This makes gyroscopes very useful in navigation, especially where magnetic compasses cannot be used, such as in crewed and crewless spacecraft,...
Gyroscope: Precession01:24

Gyroscope: Precession

Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a vertical angle and is not spinning, it will fall over due to the force of gravity producing a torque acting on its center of mass. However, if the top is spinning on its axis, it precesses about the vertical direction, rather than topple over due to this torque. Precessional motion is a combination of a steady circular motion of the axis and the...
Overview of Electron Microscopy01:25

Overview of Electron Microscopy

The wavelengths of visible light ultimately limit the maximum theoretical resolution of images created by light microscopes. Most light microscopes can only magnify 1000X, and a few can magnify up to 1500X. Electrons, like electromagnetic radiation, can behave like waves, but with wavelengths of 0.005 nm, they produce significantly greater resolution up to 0.05 nm as compared to 500 nm for visible light. An electron microscope (EM) can create a sharp image that is magnified up to 2,000,000X.
Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Rotational Motion about a Fixed Axis01:26

Rotational Motion about a Fixed Axis

A rigid body's rotation around a fixed axis makes every point within it trace a circular path around a specific line or point. The term given to this type of spinning is defined by the angular position, symbolized by the angle θ. This angle is gauged from a static reference line to the revolving object. From this angular position, any variation is referred to as angular displacement, denoted by dθ. The extent of this displacement can be calculated in degrees, radians, or revolutions, where one...

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関連する実験動画

Updated: Jul 5, 2026

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
11:34

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

Published on: December 3, 2013

スピントロニクス: 未来のスピンベースの電子ビジョン

S A Wolf1, D D Awschalom, R A Buhrman

  • 1Defense Advanced Research Projects Agency (DARPA), 3701 North Fairfax Drive, Arlington, VA 22203, USA. swolf@darpa.mil

Science (New York, N.Y.)
|November 17, 2001
PubMed
まとめ
この要約は機械生成です。

このレビューでは,電子回転を用いた新しい電子パラダイムであるスピントロニクス (spintronics) を調査します. Spintronicデバイスは,非揮発性やより速い速度などの利点を提供し,最近の材料の進歩は将来のアプリケーションの道を開いています.

さらに関連する動画

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

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors
09:59

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Published on: June 23, 2018

関連する実験動画

Last Updated: Jul 5, 2026

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
11:34

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

Published on: December 3, 2013

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

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors
09:59

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Published on: June 23, 2018

科学分野:

  • 物理 物理学 物理学とは
  • マテリアルサイエンス 材料科学
  • 電気工学 電気工学とは

背景:

  • 従来の電子機器は,電子の電荷に依存しています.
  • 電子スピンは,高度なデバイスのための追加の特性を提供します.
  • Spintronicsは,機能強化のためにスピンを活用することを目指しています.

研究 の 目的:

  • 新興分野であるスピントロニクスについて見直す.
  • 従来のエレクトロニクスに比べて潜在的な利点を強調する.
  • スピントロニックデバイスの開発における課題と最近の進展について議論する.

主な方法:

  • スピントロニックデバイスに関する現在の文献のレビュー.
  • スピントロニクスのための材料工学の進歩の分析.
  • スピンインジェクション,輸送,検出における課題の検討.

主要な成果:

  • Spintronicsは,非揮発性,高速化,低消費電力の可能性を提供します.
  • 効率的なスピンインジェクション,輸送,制御,検出は重要な課題です.
  • 新しい材料と光学操作の技術は,この分野を前進させています.

結論:

  • Spintronicsは,電子機器の有望な新しい方向性を示しています.
  • スピン操作の技術的な障害を克服することは,実現に不可欠です.
  • 材料およびデバイス物理学の継続的な研究は,将来のスピントロニックのイノベーションを推進します.