Electric field dependence of a uniaxial anisotropy energy in lithium ferrite
- 1 March 1978
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 49 (3) , 1953-1955
- https://doi.org/10.1063/1.324702
Abstract
By adapting a thermodynamic theory and method of measurement previously introduced for magnetite by two of the present authors, it is shown that at 77 °K the anisotropy energy of ionically ordered Li0.5Fe2.5O4 contains a component which is electric‐field‐dependent as well as shape‐independent, and that it has uniaxial symmetry rather than the expected cubic symmetry. The magnetic field dependence of the magnetically induced electric polarization in zero electric field is predicted, and it is shown that in all but small magnetic fields this measured polarization is in good agreement with the proposed theory. Experimental evidence for the existence of a ’’skin’’ layer in Li0.5Fe2.5O4 crystals is also presented.This publication has 5 references indexed in Scilit:
- Linear and bilinear magnetoelectric effects in magnetically biased magnetite ()Physical Review B, 1977
- Erratum: Electric field dependence of the magnetic anisotropy energy in magnetite ()Physical Review B, 1976
- Properties of Single-Crystal Lithium Ferrite Grown in the Ordered StateJournal of Applied Physics, 1964
- Influence of Ionic Order on the Magnetocrystalline Anisotropy and Crystalline Field Parameters in Lithium Ferrite MonocrystalsJournal of Applied Physics, 1960
- A Superstructure in SpinelsNature, 1952