The role of spin noise in the detection of nanoscale ensembles of nuclear spins

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dc.creatorDegen, C. L.
dc.creatorPoggio, M.
dc.creatorMamin, H. J.
dc.creatorRugar, D.
dc.date2007-10-11
dc.date2007-10-31
dc.date.accessioned2026-07-07T08:53:59Z
dc.date.available2026-07-07T08:53:59Z
dc.descriptionWhen probing nuclear spins in materials on the nanometer scale, random fluctuations of the spin polarization will exceed the mean Boltzmann polarization for sample volumes below about (100nm)^3. In this work, we use magnetic resonance force microscopy to observe nuclear spin fluctuations in real time. We show how reproducible measurements of the polarization variance can be obtained by controlling the spin correlation time and rapidly sampling a large number of independent spin configurations. A protocol to periodically randomize the spin ensemble is demonstrated, allowing significant improvement in the signal-to-noise ratio for nanometer-scale magnetic resonance imaging.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0710.2323
dc.identifierhttp://arxiv.org/abs/0710.2323
dc.identifierPhys. Rev. Lett. 99, 250601 (2007)
dc.identifierdoi:10.1103/PhysRevLett.99.250601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/145772
dc.subjectMesoscale and Nanoscale Physics
dc.titleThe role of spin noise in the detection of nanoscale ensembles of nuclear spins
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