Nuclear Magnetic Resonance Saturation and Rotary Saturation in Solids

Abstract

Nuclear spin-lattice relaxation times of ${\mathrm{Al}}^{27}$ in pure Al and ${\mathrm{Cu}}^{63}$ in annealed pure Cu have been measured with a nuclear induction spectrometer, by the method of saturation. The experimental values of $T_1$ are 4.1±0.8 milliseconds for ${\mathrm{Al}}^{27}$ and 3.0±0.6 milliseconds for ${\mathrm{Cu}}^{63}$, in reasonable agreement with theory.