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|Title:||Optical manipulation of paramagnetic particles with on-chip detection using spin valve sensors|
|Source:||Lui, L.W.Y., Li, K.B., O'Shea, S.J., Sow, C.H. (2008). Optical manipulation of paramagnetic particles with on-chip detection using spin valve sensors. Applied Physics Letters 92 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2829797|
|Abstract:||In this work, we present a combinatory approach where optical tweezers were used to trap and position a single superparamagnetic particle over a spin valve sensor, with the particle then detected by the sensor. This approach is demonstrated using superparamagnetic particles of 2 μm together with a spin valve sensor with dimensions of 2×4 μ m2, whereby a single magnetic particle was positioned over the sensor and a corresponding drop in the voltage across the sensor was detected. The results are explained using a simple model where the particle is treated as a pure magnetic dipole. © 2008 American Institute of Physics.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
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