Browse Physics

Published March 30, 2009

Mesoscopics Nanophysics Spintronics

Optical measurements in electron gases at low temperatures and high magnetic fields show the electron spins are, as predicted, polarized, but that this state is surprisingly delicate.

Published December 11, 2008

Spintronics

The effects of torques caused by spin-polarized currents are often unwanted in magnetic nanostructures, but they can be diminished with the right design.

Published October 6, 2008

Magnetism Spintronics

From conservation laws to selection rules, symmetry arguments have long been revered for their far-reaching consequences in physics. Now they point to an effective spin-orbit coupling in antiferromagnetic conductors.

Published September 22, 2008

Spintronics

The efficient injection of polarized spins from magnetic materials into semiconductors, a prerequisite for spintronics applications, is a formidable challenge. With ferromagnetic Co₂FeSi it is now possible to achieve a spin injection efficiency of close to 50%.

Published July 28, 2008

Quantum Information Spintronics

Spin decoherence is a fundamental obstacle in quantum computation and spintronics. Scientists show they can increase the lifetime of a localized spin in a diamond lattice up to 100 times by polarizing the surrounding spins on the lattice.