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A study of spin interaction in a manganese‐substituted zinc ferrite by neutron spectroscopy
Author(s) -
Ligenza S.
Publication year - 1976
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.2220780130
Subject(s) - neutron diffraction , inelastic neutron scattering , neutron scattering , superparamagnetism , neutron , materials science , condensed matter physics , inelastic scattering , ferromagnetism , quasielastic neutron scattering , atomic physics , chemistry , scattering , crystallography , physics , magnetic field , magnetization , optics , nuclear physics , quantum mechanics , crystal structure
Inelastic neutron scattering is studied on a manganese‐substituted zinc ferrite at temperatures between 5 and 293 K. The obtained neutron spectra are interpreted basing on the 6 S 5/2 ‐term splitting of the Fe 3+ ion in an octahedral B‐site. The transition energy peaks connected with different magnetic environment of Fe 3+ (B) ions are observed. The six‐fold 6 S 5/2 ‐term splitting and the excited neutron transition are discussed in terms of a phenomenological spin‐Hamiltonian, assuming combined interaction of a static magnetic field and a static electric field gradient with magnetoelectric moments of the 3d 5 electron shell. In addition, a superparamagnetic behaviour is studied by neutron diffraction and Mössbauer effect measurement. Quasielastic coherent scattering of neutrons due to superparamagnetic clusters is observed.