- Access by Xinjiang University
Antiferromagnetic Arrangements in Ferrites
Phys. Rev. 87, 290 – Published 15 July, 1952
DOI: https://doi.org/10.1103/PhysRev.87.290
Abstract
The molecular field treatment of the magnetic properties of ferrites given by Néel is extended to take into account the antiferromagnetic exchange interactions within the two magnetic sublattices. On further subdividing the two lattices, we show that the ground state may, (1) have an antiparallel arrangement of the spins on the two sites; or (2) consist of a triangular arrangement of the spins on the sublattices; or (3) have antiferromagnetism in each of the two sites separately. We also show that transitions between various configurations may occur in the same substance at different temperatures, without the assumption of temperature-dependent interactions. Neutron diffraction experiments and specific heat measurements are suggested for the detection of the predicted arrangements.
References (11)
- L. Néel, Ann. Phys. 3, 137 (1948)
- E. J. W. Verwey and E. L. Heilmann, J. Chem. Phys. 15, 174 (1947)
Omitted endnote
- [1], p. 149
- [1], p. 153
- [1], p. 154
- G. H. Wannier, Phys. Rev. 79, 357 (1950)
- [1], p. 145
Omitted endnote
- L. Néel and P. Brochet, Compt. rend. 229, 1133 (1949)
- C. Guillaud and H. Creveaux, Compt. rend. 230, 1458 (1950)