Magnetization curves of DyN clusters
Laboratoire de Magnétisme Louis Néel, B.P. 166, F-38042 Grenoble Cedex 9, France
2 Institut für Physikalische Chemie und Elektrochemie, Callinstr. 3-3a, D-30167 Hannover, Germany
Corresponding author: a email@example.com
Published online: 15 September 2001
Magnetic properties of isolated DyN clusters are studied in a molecular beam performing Stern-Gerlach experiments. The magnetizations of DyN are measured in dependence of the magnetic field strength B=0-1.6 T and at nozzle temperatures Tn=18 K and Tn=300 K. At room temperature the magnetization augments linear with the field following a simple paramagnetic model. At Tn=18 K the magnetization curves saturate at field strengths T. To explain the magnetization process at low temperatures two models are discussed: A model for adiabatic magnetization based on cluster rotation effects and a modified van-Vleck model.
PACS: 39.10.+j – Atomic and molecular beam sources and techniques / 36.40.Cg – Electronic and magnetic properties of clusters / 75.50.Cc – Other ferromagnetic metals and alloys
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001