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arXiv · 0812.2274

Force-detected nuclear double resonance between statistical spin polarizations

M. Poggio·H. J. Mamin·C. L. Degen·M. H. Sherwood·D. Rugar
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Abstract

We demonstrate nuclear double resonance for nanometer-scale volumes of spins where random fluctuations rather than Boltzmann polarization dominate. When the Hartmann-Hahn condition is met in a cross-polarization experiment, flip-flops occur between two species of spins and their fluctuations become coupled. We use magnetic resonance force microscopy to measure this effect between 1H and 13C spins in 13C-enriched stearic acid. The development of a cross-polarization technique for statistical ensembles adds an important tool for generating chemical contrast in nanometer-scale magnetic resonance.

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M. Poggio, H. J. Mamin, C. L. Degen, M. H. Sherwood, D. Rugar. 2008-12-12. Force-detected nuclear double resonance between statistical spin polarizations. https://doi.org/10.1103/physrevlett.102.087604

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