Phys. Rev. Lett. 99, 227603 (2007) [4 pages]Direct Observation of Nuclear Spin Diffusion in Real SpaceReceived 8 August 2007; published 30 November 2007 Images directly visualizing the spatial spin-diffusion process are reported. The measurements were performed using a magnetic resonance force microscope. The field gradient associated with the force-detection experiment is large enough to affect the spin dynamics and a modified kinetics of the spin-diffusion process is observed. The effects of the gradient were compensated for by a pulse scheme and a pure Zeeman diffusion rate constant of D=(6.2±0.7)×10-12 cm2/s in CaF2 was observed. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.227603
DOI:
10.1103/PhysRevLett.99.227603
PACS:
76.60.Pc, 68.37.Rt, 75.40.Gb
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