Multiple-Pulse Nuclear-Magnetic-Resonance Transients ofXe129andXe131in Solid Xenon

Transient nuclear free-precession signals have been investigated for ${\mathrm{Xe}}^{129}$ and ${\mathrm{Xe}}^{131}$ in solid xenon. Coherent radiofrequency pulses with controlled phase differences were used to produce "solid" echoes and "quadrupole" echoes which provide information about static dipolar and quadrupolar interactions in the solid. "Conventional" ${\mathrm{Xe}}^{131}$ echoes formed by rephasing in the external magnetic-field inhomogeneity were observed at temperatures for which the central transition of the ${\mathrm{Xe}}^{131}$ spectrum is motionally narrowed by self-diffusion. The temperature dependence of the data is consistent with the correlation times for self-diffusion obtained in previous ${\mathrm{Xe}}^{129}$ experiments.