DETERMINATION OF G-VALUES BY A NEW ELECTRON-SPIN TRANSIENT NUTATION EXPERIMENT - THE G-PERPENDICULAR-TO-VALUE OF TITANIUM-DOPED SAPPHIRE

It is demonstrated that electron spin transient nutation experiments c an be used to determine the g matrix of an anisotropic spin system. Th e procedure is based on the fact that the nutation frequencies are pro portional to the transition moments, which in turn are functions of th e g principal values and principal directions. The recently introduced PEANUT sequence is shown to be particularly well suited for this purp ose. The potential of the approach is demonstrated by the measurement of the extremely small perpendicular g value (g(perpendicular to) = 0. 04 +/- 0.015) of titanium-doped sapphire.