Interpretation of NMR diffusion measurements in uniform- and nonuniform-field profiles

John C. Tarczon and W. P. Halperin
Phys. Rev. B 32, 2798 – Published 1 September 1985
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Abstract

With the use of Carr-Purcell random-walk methods, approximate expressions have been derived for the spin-echo decay envelope for spins diffusing in a restricted region in the presence of an inhomogeneous field. The sample region considered is a slab with a uniform cross section and plane boundaries. The inhomogeneous field may be either time independent or pulsed and is not required to have a uniform gradient. With consideration of different limits of the final expressions, both restricted and unrestricted diffusion can be treated. Comparison is made of our results with those found by other authors, and suggestions are given which can be used to extend the sensitivity of field-gradient NMR (nuclear magnetic resonance) diffusion measurements.

  • Received 25 March 1985

DOI:https://doi.org/10.1103/PhysRevB.32.2798

©1985 American Physical Society

Authors & Affiliations

John C. Tarczon and W. P. Halperin

  • Department of Physics and Astronomy and Materials Research Center, Northwestern University, Evanston, Illinois 60201

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Issue

Vol. 32, Iss. 5 — 1 September 1985

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