Magnetic properties of R3Rh2 compounds with R=Gd, Tb,Dy, Ho and Er |
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| Authors: | D Gignoux JC Gomez-Sal D Paccard JA Aramburu-Zabala |
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| Institution: | 1. Laboratoire Louis Néel, CNRS, 166X, 38042 Grenoble-cédex, France;2. Departamento de Optica y Estructura de la Materia, Facultad de Ciencias, Santander, Spain;3. Laboratoire Structure de la Matière, Université de Savoie, Chemin du Bray, 74019 Annecy-le-Vieux, France |
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| Abstract: | Bulk magnetic measurements performed on polycrystalline samples of the tetragonal compounds R3Rh2 with R=Gd, Tb, Dy, Ho and Er are presented. All the compounds are ferromagnetic at low temperature. However in Tb3Rh2 an antiferromagnetic behaviour is observed between 14 and 24 K. In Gd3Rh2, where the magnetocrystalline anisotropy must be negligible, it seems that the magnetic structure is not collinear. In the other compounds the observed properties essentially result from indirect exchange interactions and crystal field effects acting on the rare earth ions which lie in low symmetry sites. |
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