spintronics

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The Future of Computing

“The Future of Computing” is a public presentation that examines trends in computing technology and predicts what the future of computing might hold for us. Visitors are introduced to the idea of smaller, nanoscale transistors as the key to faster, more capable computers – and the barriers we face in continuing to shrink transistors to advance our computing technology (heat build-up, fabrication issues due to their small size, and quantum effects). Possible solutions include new materials for transistors like carbon nanotubes and graphene, or new paradigms for information processing like...

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Scientific Image - Nanoscale Interface for Spin Injection

This is a scanning electron micrograph of a nanoscale interface for spin injection in a nanomechanical torsion oscillator used for measuring tiny amounts of torque.

This interface is built on a silicon-based nanomechanical torsion oscillator, a device used to measure tiny amounts of torque. The device contains a central wire running from top left to bottom right. The top surface of one part of this wire is coated with a 50 nm layer of cobalt (which is magnetic); the top surface of the other part is coated with 50 nm of non-magnetic gold. As electrons travel from the magnetic into...

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Scientific Image - Spin Torsion Oscillator

This scanning electron micrograph shows a nanomechanical torsion oscillator used by computer engineers to measure extremely small amounts of torque.

A nanomechanical torsion oscillator is used to measure extremely small torsion or twisting forces smaller than those created by the untwisting of a strand of DNA. When current passes from magnetic into non-magnetic materials, the directional spins of the electrons flip at the boundary, producing a mechanical torque. This device can measure the torque in a metallic nanowire with unprecedented sensitivity. This approach to measuring...

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