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The maximal axial parameters in equivalent parametrizations of high symmetry crystal‐field Hamiltonians
Author(s) -
Mulak Jacek,
Mulak Maciej,
Gonczarek Ryszard
Publication year - 2007
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.200790000
Subject(s) - hamiltonian (control theory) , crystal (programming language) , physics , crystallography , chemistry , mathematics , mathematical optimization , computer science , programming language
The cover picture represents a fingerprint of crystal‐field parametrization, that is a map of the normalized crystal‐field parameter B 40 for the Pr 3+ ion in Pr 2 CuO 4 of C 4v point symmetry according to the reference frame orientation (based on the data by Riou et al. [2]). This map is equivalent to the angle dependence of the k = 4 component of the crystal‐field Hamiltonian. The contour lines are the equipotential lines. The picture relates to the work by Jacek Mulak, Maciej Mulak, and Ryszard Gonczarek [1]. The first author is a graduate in Chemistry (Wroclaw University of Technology, 1962) and Mathematics (University of Wroclaw, 1968), now holding the position of a professor at the Institute of Low Temperature and Structure Research, Polish Academy of Sciences in Wroclaw, Poland. He specializes in the crystal‐field theory and its application to magnetism and spectroscopy. He embarked on his scientific career as an assistant professor to Professor Włodzimierz Trzebiatowski (1906–1982). The paper is then a tribute to Professor Włodzimierz Trzebiatowski, the founder of the physico‐chemical school at Wroclaw's Academic Center. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)