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The antiferromagnetic structure of TbB4 |
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| Authors: | F. Elf W. Schäfer G. Will J. Etourneau |
| Affiliation: | Mineralogisches Institut der Universität Bonn, Lehrstuhl für Mineralogie und Kristallographie, Poppelsdorfer Schlob, 5300 Bonn 1, W. Germany;Laboratoire de Chimie du Solide du CNRS, Université de Bordeaux I, 351 cours de la Libération, 33405 Talence Cédex, France |
| Abstract: | The magnetic structure of the rare earth tetraboride TbB4 (crystallographic space group P4/mbm) has been determined by neutron diffraction on a polycrystalline sample. Below the experimentally determined Néel temperature of TN = (43±1) K TbB4 is ordered antiferromagnetically. The data refinement yielded a magnetic moment value of (7.7 ± 0.2) μB/Tb ion at 4.2 K which we interpret as Tb4+. The magnetic structure is antiferromagnetic collinear with the moments perpendicular to the tetragonal axis. |
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