What is spintronics? - Definition from WhatIs.com
Part of the Hardware glossary:

Spintronics is an emerging field of nanoscale electronics involving the detection and manipulation of electron spin

Electron spin can be detected as a magnetic field having one of two orientations, known as down and up. This provides an additional two binary states to the conventional low and high logic values, which are represented by simple currents. With the addition of the spin state to the mix, a bit can have four possible states, which might be called down-low, down-high, up-low, and up-high. These four states represent quantum bits (qubits).

Spintronic technology has been tested in mass-storage components such as hard drives. The technology also holds promise for digital electronics in general. The existence of four, rather than two, defined states for a logic bit translates into higher data transfer speed, greater processing power, increased memory density, and increased storage capacity, provided the properties of electron spin can be sufficiently controlled for practical applications.

Learn More About IT:

Spintronics-info.com maintains current news and information about spintronics.

Wikipedia has an entry about spintronics.

Lisa Zyga explains how a newly discovered spintronics effect could lead to magnetic batteries.

This was last updated in December 2008
Posted by: Margaret Rouse

Related Terms


  • laser

    - A laser is a coherent and focused beam of photons; coherent, in this context, means that it is all one wavelength, unlike ordinary light which showers on us in many wavelengths. The acronym laser s... (WhatIs.com)

  • hardware virtualization

    - Hardware virtualization is the abstraction of computing resources from the software that uses those resources. Today, hardware virtualization is often called server virtualization or, simply, virtu... (SearchVMware.com)

  • robotics

    - Robotics is a branch of engineering that involves the conception, design, manufacture, and operation of robots. (WhatIs.com)


  • Hardware

    - Terms related to computer hardware, including definitions about cables, connectors and power supply units and words and phrases about computing peripheral devices including the keyboard, mouse, au...

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question. Find an Answer.Powered by ITKnowledgeExchange.com

Ask An IT Question

Get answers from your peers on your most technical challenges

Ask Question

Tech TalkComment



    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.