Magnetic Ordering of Terbium in Some Perovskite Compounds
- 1 February 1968
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 39 (2) , 1364-1366
- https://doi.org/10.1063/1.1656306
Abstract
Four perovskite compounds ATbO3 (A = Fe, Cr, Al, Co) are studied by means of neutron diffraction. Three Nèel temperatures are distinguished. When A is magnetic and T < TN1, the A sublattice orders in a G mode; when T < TN2, the Tb sublattice orders and is coupled with A in the same irreducible representation of the space group Pbnm; finally when T < TN3, Tb orders in another mode which is decoupled from A, i.e., Tb orders in a different irreducible representation. The order in the latter case is the only one observed one if A is diamagnetic, and its origin is mainly dipolar. The Néel temperatures are given; the metamagnetism of Tb is studied for T < TN3.This publication has 2 references indexed in Scilit:
- Etude par diffraction neutronique de la structure magnetique du chromite de terbiumJournal of Physics and Chemistry of Solids, 1967
- Structures magnetiques de TbFeO3Solid State Communications, 1967