Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 16 April 1993:
Vol. 260. no. 5106, pp. 320 - 323
DOI: 10.1126/science.260.5106.320
Prev | Table of Contents | Next

Articles

Bipolar Spin Switch

Mark Johnson 1

1 Bellcore, Red Bank, NJ 07701-7040

A thin ferromagnetic film can be used to polarize the spin axes of the electrons carrying an electric current in a manner loosely analogous with a light polarizer. When such a film is fabricated on a gold film, a nonequilibrium population of spin-polarized electrons is built up in the gold causing a "spin bottleneck" effect. The addition of a second ferromagnetic film results in a device whose output voltage depends on the orientation of the spins.

Submitted on November 5, 1992
Accepted on January 25, 1993


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Control of Spin Precession in a Spin-Injected Field Effect Transistor.
H. C. Koo, J. H. Kwon, J. Eom, J. Chang, S. H. Han, and M. Johnson (2009)
Science 325, 1515-1518
   Abstract »    Full Text »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)