Quasisteady-state model of a laser corona of spherical and cylindrical targets

Abstract

The structural phase transition in RbCdFl at 124 K from cubic to tetragonal symmetry was studied by investigating the paramagnetic .%In' -and Fe.'-probes with EKDOR. From the superhyperfine interactions the order parameter could be inferred. It is shown that the phase transition is weakly of first order. The lattice relaxation about the probe causes the order parameter to be a 'local' one. which differs from first to third shell of neighbours around the probe ion. The results demonstrate the limitations of the use of probes to study the intrinsic crystal properties.C32-K