Theory of spin relaxation in magnetic resonance force microscopy

Details Theory of spin relaxation in magnetic resonance force microscopy Theory of spin relaxation in magnetic resonance force microscopy

2002-10-09

arxiv.org/abs/cond-mat/0210218v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 1 figure

Scientific paper

10.1063/1.1554769

We study relaxation of a spin in magnetic resonance force microscopy (MRFM) experiments. We evaluate the relaxation rate for the spin caused by high-frequency mechanical noise of the cantilever under the conditions of adiabatic spin inversion. We find qualitative agreement between the obtained relaxation time and the experimental results of Stipe {\it et al.} [Phys. Rev. Lett. 87, 277602 (2001)]. Based on our analysis, we propose a method for improving the MRFM sensitivity by engineering cantilevers with reduced tip positional fluctuations.

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