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Umbrella‐Type Magnetic Structures in Diluted Ordered Lithium Ferrospinels
Author(s) -
Maltsev V. I.
Publication year - 1985
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.2221280123
Subject(s) - isostructural , ferrimagnetism , lithium (medication) , superstructure , neutron diffraction , materials science , crystallography , crystal structure , diffraction , gallium , condensed matter physics , chemistry , magnetic field , physics , metallurgy , magnetization , optics , thermodynamics , medicine , quantum mechanics , endocrinology
Abstract A symmetry analysis of ferrimagnetic structures is carried out in spinels that are isostructural with ordered lithium ferrite. The decrease of crystal symmetry due to the formation of atomic superstructure is shown to be a condition for realization of umbrella‐type magnetic structures in compounds of this class. The neutron diffraction data for lithium‐aluminium and lithium‐gallium ferrospinels are given which confirm the results of the theoretical treatment.