Magnetic behavior

Recently, the magnetic behavior of Ni dusters which contain from 6 to 44 Ni atoms has been studied. [121, 144] The total number of unpaired electrons in the cluster, n was defined as the difference between the majority (up) and minority (down) spins, n, = and found to be 7.0, 7.9, 15.1, and 31.1 in Nij, Nig, 

2 Electronic Structures of Metal Clusters and Cluster Compounds 

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Ferrites can be classified according to crystal stmcture, ie, cubic vs hexagonal, or magnetic behavior, ie, soft vs hard ferrites. A systematic classification as well as some appHcations ate given in Table 1 (see also Magnetic materials, bulk Magnetic materials, thin film). 

Technical Magnetic Behavior. When a magnetic-field strength H is appHed to a ferromagnetic or ferrimagnetic material, the latter develops a flux density or iaduction as a result of orientation of the magnetic domains. The relation between B and H is... 

A. Nussbaum, Electronic and Magnetic Behavior of Materials, Prentice-HaH, Inc., Englewood Cliffs, N.J., 1967. 

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