Abstract
The first direct measurement of the rate of spin diffusion through a homogeneous sample is reported. The measurement was performed as an incoherent scattering experiment via a combination of pulsed gradient spin echo methods with multiple pulse, pulsed gradient spatial encoding. The measurement records the destruction of a spin magnetization grating by the random translation of spin magnetization associated with the flip-flop term of the homonuclear dipole-dipole interaction. For single crystal , the measured parallel components of the spin diffusion rates are along the [001] direction and along the [111] direction, in good agreement with theoretical predictions.
- Received 22 September 1997
DOI:https://doi.org/10.1103/PhysRevLett.80.1324
©1998 American Physical Society