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Researchers advance toward hybrid spintronic computer chips
Date:4/13/2011

m, and then adding an organic layer in Epstein's customized organics lab a complex process that required a redesign of the circuitry in both parts.

"You could ask, why didn't we go with all organics, then?" Johnston-Halperin said. "Well, the reality is that industry already knows how to make devices out of inorganic materials. That expertise and equipment is already in place. If we can just get organic and inorganic materials to work together, then we can take advantage of that existing infrastructure to move spintronics forward right away."

He added that much work will need to be done before manufacturers can mass-produce hybrid spintronics. But as a demonstration of fundamental science, this first hybrid circuit lays the foundation for technologies to come.

For the demonstration, the researchers used the organic magnet, which they made from a polymer called vanadium tetracyanoethylene, to polarize the spins in an electrical current. This electrical current then passed through the gallium arsenide layer, and into an LED.

To confirm that the electrons were still polarized when they reached the LED, the researchers measured the spectrum and polarization of light shining from the LED. The light was indeed polarized, indicating the initial polarization of the incoming electrons.

The fact that they were able to measure the electrons' polarization with the LED also suggests that other researchers can use this same technique to test spin in other organic systems.


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Contact: Ezekiel Johnston-Halperin
Johnston-halperi.1@osu.edu
614-247-4074
Ohio State University
Source:Eurekalert

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