منابع مشابه
Ultrasensitive Magnetic Nanoparticle Detector for Biosensor Applications
Ta/Ru/Co/Ru/Co/Cu/Co/Ni80Fe20/Ta spin-valve giant magnetoresistive (GMR) multilayers were deposited using UHV magnetron sputtering and optimized to achieve a 13% GMR ratio before patterning. The GMR multilayer was patterned into 12 sensor arrays using a combination of e-beam and optical lithographies. Arrays were constructed with 400 nm × 400 nm and 400 nm × 200 nm sensors for the detection of ...
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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 Pmin is limited by the low-frequency JohnsonNyquist noise and the signal-to-noise ratio (SNR) of STMD is proportional to the input microwave power PRF. In the secon...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2011
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(11)70004-9