Phase-locking in double-point-contact spin-transfer devices

F. B. Mancoff (), N. D. Rizzo, B. N. Engel and S. Tehrani
Additional contact information
F. B. Mancoff: Freescale Semiconductor Inc.
N. D. Rizzo: Freescale Semiconductor Inc.
B. N. Engel: Freescale Semiconductor Inc.
S. Tehrani: Freescale Semiconductor Inc.

Nature, 2005, vol. 437, issue 7057, 393-395

Abstract: Nanomagnets in a spin Magnetic thin film multilayers have many applications for data storage, semiconductor memories and as sensors. The spin-torque effect, which uses an electric current to rapidly spin the material's magnetic constituents, could lead to new applications for this technology at ever-smaller scales: think in terms of a radio set the size of a bacterium. Two groups have now independently achieved synchronization — or phase-locking — of the magnetic oscillations of two such nanomagnets placed just 400–500 nm apart. These oscillations can generate microwave signals for telecommunication and an array of these nanomagnets could also act as a receiver, enabling microchips to communicate without being in physical contact, greatly enhancing computing speed.

Date: 2005
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DOI: 10.1038/nature04036

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