Abstract

To date, the spin-wave logic devices are seen promising for parallel data processing at high speed [Appl. Phys. Lett. 87, 153501 (2005), and Superlattices and Microstructures 38, 184 (2005)]. However, there is no power gain with the current spin-wave logic devices yet, and the spin-wave cannot propagate a long distance because of the spin-wave dumping effect. All those will prevent the spin-wave devices from real applications. Here we report a spin-wave amplifier with a power gain that is controlled by the pumping power level: At the pumping power of 16 dBm at 2.6 GHz, the power gain is 6.4 dB and the frequency is 1.3 GHz. The amplifier is made from a permalloy film with its thickness of 25 nm. The signal input, pump wave input, and signal output are simple microstrip lines, thus the device structure is simple.

Date

January 1, 1970

Authors

Mingqiang Bao, Amber Chen, Alex Khitun, Kang Wang, Ajey Jacob

Journal

APS March Meeting Abstracts

Pages

X29. 011