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What is Spin-Valve PHE Sensor for Micro-Bead Detection about?

This document discusses the successful fabrication of a spin-valve planar Hall effect (PHE) sensor designed for single micro-bead detection, achieving a sensitivity of 7.2 μV Oe−1. The sensor, with a junction size of 3 μm × 3 μm, was able to detect a single 2.8 μm diameter Dynabeads® M-280 bead by isolating and positioning it on the sensor junction using a micro magnetic needle. Experimental results demonstrate the sensor

Author

qhtran.fr

Language

EN