mu(+) hopping between magnetically labeled sites in PrIn3: "Kinematic" simulation and analytic treatment

mu(+) hopping between magnetically labeled equivalent crystal sites in PrIn 3 is monitored by transverse-field mu SR. A general "kinematic" Monte Carlo calculation is presented, enabling a direct simulation of the observations for any given hopping probability function. Assuming a Poisson probability , appropriate for identical potential-well sites, the kinematic simulation is compared with an analytic treatment in deriving the hopping rates Omega between 150 and 200 K for the present experiment. The potential-well parame ters, defined by Omega = Omega(0) exp(-U/kT), are derived from the measurem ents with a rather accurate determination of the "potential barrier" U/k = 3260(45) K.