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We demonstrate a radio-frequency electromagnetic signal detection in spintronic devices utilizing various magnetoresistance effects. Different device layout is proposed such as tunneling magnetoresistance nano-pillar or giant magnetoresistance stripe, which enable DC voltage generation when a device is supplied with radio-frequency current. Depending on the detection method, sensitivity of up to 80...
We report a large enhancement of spin-torque diode sensitivity in CoFeB/MgO/CoFeB magnetic tunnel junctions measured under perpendicular magnetic fields and dc bias currents. In the measurement of homodyne detection, a large dc output voltage of 190 V was obtained when an RF signal power of 30 dB m and a dc current of 1.0 mA were applied. This value corresponds to the diode sensitivity...
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