H.J. Mamin
Applied Physics Letters
We have used the large gradients generated near the ferromagnetic tip of a magnetic resonance force microscope to locally suppress spin diffusion in a silica sample containing paramagnetic electron spins. By controlling the slice location with respect to the tip, the magnetic field gradient was varied from 0.01 to [Formula presented], resulting in a fourfold decrease in [Formula presented] and a similar decrease in [Formula presented]. The observed dependence of the relaxation rates on field gradient is consistent with the quenching of flip-flop interactions that mediate the transport of magnetization between slow and fast relaxing spins. © 2004 The American Physical Society.
H.J. Mamin
Applied Physics Letters
M. Loretz, J.M. Boss, et al.
Physical Review X
B.C. Stipe, H.J. Mamin, et al.
Physical Review Letters
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Applied Physics Letters