Polarization separates spin currents from charge currents

Researchers at the University of Toronto (Toronto, Ont., Canada) are exploring all-optical spin currents in which electrons are driven around and sorted using light in accordance with their spins, rather than having bias voltages drag them around by their charges.

Send this story to:

Enter the email address of the recipient.
Separate multiple addresses with commas.

Add your own personal message:

Enter your email address:

Note: Your email address is used only to let the recipient know who sent the story, and in case of transmission error. Both your address and the recipient's address will not be used for any other purpose.