4 research outputs found
Noise properties of a resonance-type spin-torque microwave detector
We analyze performance of a resonance-type spin-torque microwave detector
(STMD) in the presence of noise and reveal two distinct regimes of STMD
operation. In the first (high-frequency) regime the minimum detectable
microwave power is limited by the low-frequency Johnson-Nyquist
noise and the signal-to-noise ratio (SNR) of STMD is proportional to the input
microwave power . In the second (low-frequency) regime is limited by the magnetic noise, and the SNR is proportional to
. The developed formalism can be used for the optimization
of the practical noise-handling parameters of a STMD.Comment: 3 pages, 2 figure