Journal
LANGMUIR
Volume 20, Issue 16, Pages 6556-6559Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la049802o
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We use paramagnetic beads to probe strongly localized magnetic fields from one-dimensional nanomagnets. Using a polarization microscope in reflection mode, we find that light reflected from beads exhibits intensity fluctuations which may help us understand Brownian motion near interfaces. We estimate the height fluctuations and femtonewton forces acting on the beads.
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