Low-energy magnetic dipole strength in cadmium isotopes

Magnetic dipole strength functions have been deduced from averages of large numbers of M1 transition strengths calculated within the shell model for the nuclides 105Cd, 106Cd 111Cd, and 112Cd. Enhancements of the M1 strengths toward low transition energy have been found for all nuclides considered. These properties are compared with those of experimental photon strength functions obtained from (3He,3He') experiments, which seem to indicate
a disappearance of the low-energy enhancement in the heavier isotopes.