Tag Archives | Spintronics
A Transistor-Like Amplifier for Single Photons

A Transistor-Like Amplifier for Single Photons

Data transmission over long distances usually utilizes optical techniques via glass fibres — this ensures high speed transmission combined with low power dissipation of the signal. For quite some years possibilities have been explored how to go one step further and perform all-optical data processing, with optical transistors and optical logic gates. In particular in [...]

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New Characteristics of Complex Oxide Surfaces

New Characteristics of Complex Oxide Surfaces

A novel combination of microscopy and data processing has given researchers at the Department of Energy’s Oak Ridge National Laboratory an unprecedented look at the surface of a material known for its unusual physical and electrochemical properties.   The research team led by ORNL’s Zheng Gai examined how oxygen affects the surface of a perovskite [...]

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Smooth Moves: How Do Soccer Balls Swerve?

Smooth Moves: How Do Soccer Balls Swerve?

It happens every four years: The World Cup begins and some of the world’s most skilled players carefully line up free kicks, take aim — and shoot way over the goal.   The players are all trying to bend the ball into a top corner of the goal, often over a wall of defensive players [...]

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Move Over, Silicon: A New Circuit in Town

Move Over, Silicon: A New Circuit in Town

When it comes to electronics, silicon will now have to share the spotlight. In a paper recently published in Nature Communications, researchers from the USC Viterbi School of Engineering describe how they have overcome a major issue in carbon nanotube technology by developing a flexible, energy-efficient hybrid circuit combining carbon nanotube thin film transistors with [...]

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Breakthrough for IT Using Heusler Materials

Breakthrough for IT Using Heusler Materials

It is the breakthrough that physicists and chemists around the world have long anticipated and it will play a pivotal role in information technology in coming years. Researchers at Johannes Gutenberg University Mainz (JGU) have managed, for the first time, to directly observe the 100 percent spin polarization of a Heusler compound. Heusler alloys are [...]

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Weird Magic Ingredient for Quantum Computing

Weird Magic Ingredient for Quantum Computing

A form of quantum weirdness is a key ingredient for building quantum computers according to new research from a team at the University of Waterloo’s Institute for Quantum Computing (IQC).   In a new study published in the journal Nature, researchers have shown that a weird aspect of quantum theory called contextuality is a necessary [...]

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Charging Portable Electronics in 10 Minutes

Charging Portable Electronics in 10 Minutes

Researchers at the University of California, Riverside Bourns College of Engineering have developed a three-dimensional, silicon-decorated, cone-shaped carbon-nanotube cluster architecture for lithium ion battery anodes that could enable charging of portable electronics in 10 minutes, instead of hours.   Lithium ion batteries are the rechargeable battery of choice for portable electronic devices and electric vehicles. [...]

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Liberating Devices From Their Power Cords

Liberating Devices From Their Power Cords

Imagine a future in which our electrical gadgets are no longer limited by plugs and external power sources.   This intriguing prospect is one of the reasons for the current interest in building the capacity to store electrical energy directly into a wide range of products, such as a laptop whose casing serves as its [...]

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Flexible Electronics Change Shape Inside Body

Flexible Electronics Change Shape Inside Body

Researchers from The University of Texas at Dallas and the University of Tokyo have created electronic devices that become soft when implanted inside the body and can deploy to grip 3-D objects, such as large tissues, nerves and blood vessels.   These biologically adaptive, flexible transistors might one day help doctors learn more about what [...]

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Playing Pool With Carbon Atoms

Playing Pool With Carbon Atoms

A University of Arizona-led team of physicists has discovered how to change the crystal structure of graphene, more commonly known as pencil ‘lead’, with an electric field, an important step toward the possible use of graphene in microprocessors that would be smaller and faster than current, silicon-based technology.   Graphene consists of extremely thin sheets [...]

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