Evidence for Adiabatic Magnetization of cold Dy_N Clusters

Details Evidence for Adiabatic Magnetization of cold Dy_N Clusters Evidence for Adiabatic Magnetization of cold Dy_N Clusters

2001-01-06

arxiv.org/abs/cond-mat/0101075v1

Phys. Rev. A 62, 051201 (2000)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevA.62.051201

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 \mu_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 \mu_z(B) at large field strengths. The magnetization approaches saturation following the power law |\mu_z-\mu_0| proportional to 1/\sqrt{B}, where \mu_0 denotes the magnetic moment. This gives evidence for adiabatic magnetization.

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