Quadrupolar Splitting of the Al27and Be9Magnetic Resonances in Beryl Crystals

摘要

The quadrupolar hyperfine structure of the Al27and Be9nuclear magnetic resonance peaks in beryl crystal at 300deg;K have been examined. From the observed spectra, the following values were obtained for the nuclear spinsI,the effective nuclear magnetic moments mgr;, the nuclear quadrupole coupling constantseQopen phizz, and the electric field asymmetry parameters eegr;:Al27:thinsp;thinsp;Iequals;5sol;2,thinsp;thinsp;verbar;mgr;verbar;equals;3.6385plusmn;0.0003thinsp;n.m.,verbar;eQopen phizzverbar;equals;3.093plusmn;0.015thinsp;Mcsol;sec,thinsp;thinsp;eegr;equals;0.000plusmn;0.005.Be9:thinsp;thinsp;Iequals;3sol;2,thinsp;thinsp;verbar;mgr;verbar;equals;1.774plusmn;0.0002thinsp;n.m.,verbar;eQopen phizzverbar;equals;0.504plusmn;0.004thinsp;Mcsol;sec,thinsp;thinsp;eegr;equals;0.090plusmn;0.005.