Evidence for Adiabatic Magnetization of cold Dy_N Clusters
arXiv:cond-mat/0101075 · doi:10.1103/PhysRevA.62.051201
Abstract
Magnetic properties of Dy_N clusters in a molecular beam generated with a liquid helium cooled nozzle are investigated by Stern-Gerlach experiments. The cluster magnetizations μ_z are measured as a function of magnetic field (B = 0 - 1.6T) and cluster size (16 < N < 56). The most important observation is the saturation of the magnetization μ_z(B) at large field strengths. The magnetization approaches saturation following the power law |μ_z-μ_0| proportional to 1/\sqrt{B}, where μ_0 denotes the magnetic moment. This gives evidence for adiabatic magnetization.
4 pages, 3 figures