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Magnetic Moments and Initial Susceptibilities of f‐Electron States Experiencing a Crystal Field of Cubic Symmetry
Author(s) -
Fischer G.,
Herr A.
Publication year - 1986
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221360112
Subject(s) - condensed matter physics , magnetic moment , electron , symmetry (geometry) , physics , magnetic field , perturbation (astronomy) , crystal (programming language) , magnetic susceptibility , field (mathematics) , quantum mechanics , mathematics , geometry , computer science , pure mathematics , programming language
The effect of perturbation to the second order caused by a magnetic field H on the energy levels of an f‐electron situated in a crystal field of cubic symmetry is calculated. This development is of particular interest in the understanding of magnetic properties of f‐electrons: the term in H gives the individual magnetic moment of the considered sub‐level and the term in H2 the corresponding Van Vleck susceptibility. The cases of H parallel respectively to the three principal crystallog‐ raphic directions are considered. The three terms of the energy development are tabulated for all J from 2 to 8 in the cases of purely fourth and sixth order crystal field.