Nuclear Magnetic Resonance and Quadrupole Effects in KBr and NaBr Single Crystals

Publisher Website
Google Scholar
Abstract
Nuclear-magnetic-resonance pulse techniques have been applied to the study of first-order quadrupole broadening of the satellites for the bromine nucleus in alkali halide crystals. From the analysis of the free precession, the shape and the width of the satellite line can be obtained. For KBr and NaBr it has been found that the satellite line has a Lorentz shape, and that the width depends upon the orientation of the applied magnetid field. Also it is shown that by continuous-wave measurements the broadening of the satellites can be detected from measurements of the effective saturation relaxation time. The results obtained are discussed in relation to the type and orientation of dislocations present in the crystals.