Abstract
Using pulsed nuclear magnetic resonance methods the central component magnetisation recovery curves have been measured for 59Co in a single crystal of K3Co(CN)6 at 295K. By using two different sets of initial conditions it has been possible to measure the parameters W1 and W2 which are related to the transition rates for Delta m=+or-1 and Delta m=+or-2 transitions. Previous relaxation measurements have suggested that an optical mode of the Co(CN)6 octahedron is responsible for spin-lattice relaxation in the temperature interval 100-300K. The present value of 0.2+or-0.06 obtained for the ratio W2/W1, together with theoretical calculations, suggests that a band of several overlapping modes, of wavenumber approximately 412 cm-1, is involved in relaxation.
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