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Site inequivalence for Mn 2+ substitution on Zn sites in ZnGeP 2 and ZnSiP 2
Author(s) -
Gehlhoff W.,
Azamat D.,
Voevodin V. G.,
Hoffmann A.
Publication year - 2005
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.200409086
Subject(s) - electron paramagnetic resonance , crystallography , chemistry , chalcopyrite , hamiltonian (control theory) , nuclear magnetic resonance , physics , mathematics , copper , organic chemistry , mathematical optimization
The magnetic site‐inequivalence of the both Zn sites in ZnGeP 2 (ZnSiP 2 ) could be resolved for Mn Zn 2+ ( S = $ \textstyle 5 \over 2 $ ) by electron paramagnetic resonance (EPR) measurements. The EPR spectra are analyzed with the generalized spin Hamiltonian (SH) for S 4 symmetry. We found that the Mn substitu‐tion on Zn site causes a strong local distortion of the free parameter x f , which describes the positions of the anions in chalcopyrite structures with c / a ≠ 2. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)