Browse Physics

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Focus

Electrons Curve without Help

Phys. Rev. Focus 27, 8 (2011) – Published February 25, 2011

Experiments show that the spin of an electron can cause its path to curve as it moves through a semiconductor, even in the absence of scattering, which may be important for future devices.

Focus

Nobel Focus: Sensitive Magnetic Sandwich

Phys. Rev. Focus 20, 13 (2007) – Published October 15, 2007

The 2007 Nobel Prize in Physics recognizes the discovery of giant magnetoresistance, which allowed dramatic improvements in memory density for disk drives (revised 23 October).

Focus

Taking Microwaves for a Spin

Phys. Rev. Focus 18, 6 (2006) – Published August 25, 2006

A new design for a microwave laser would make the device compact enough to fit on a computer chip.

Focus

Tiny Twister

Phys. Rev. Focus 16, 9 (2005) – Published September 19, 2005

A nanoscale ‘bridge’ should twist a measurable amount when a current of spin-aligned electrons flows across. Future electronic devices may be based on manipulating such tiny spin currents.

Focus

Spin Currents–Free of Charge

Phys. Rev. Focus 11, 24 (2003) – Published May 30, 2003

A subtle quantum effect produces currents of electron spin without the currents of electricity that normally accompany them.

Focus

A New Source of Spin Control

Phys. Rev. Focus 7, 21 (2001) – Published May 7, 2001

A new way of generating spin polarized electric currents using light may help in the development of ‘spintronic’ devices.