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Magnetization of ferromagnetic clusters |
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| Authors: | G Bertsch N Onishi K Yabana |
| Institution: | 1. Department of Physics and Institute for Nuclear Theory, University of Washington, Box 351560, 98195, Seattle, WA, USA 2. Institute of Physics, College of Arts and Sciences, University of Tokyo, Komaba, Meguro-ku, 153, Tokyo, Japan 3. Department of Physics, Faculty of Science, Niigata University Igarashi, 950-21, Niigata-city, Niigata, Japan |
| Abstract: | The magnetization and deflection profiles of magnetic clusters in a Stern-Gerlach magnet are calculated for conditions under which the magnetic moment is fixed in the intrinsic frame of the cluster, and the clusters enter the magnetic field adiabatically. The predicted magnetization is monotonic as a function of the ratio of magnetic energy  0
B to the rotational thermal energyk
BT. In low field the average magnetization is 2/3 of the Langevin function. The high-field moment approaches saturation asymptotically asB
–1/2 instead of theB
–1 dependence in the Langevin function |
| Keywords: | PACS" target="_blank">PACS 36 40 – c 75 20 – g |
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