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Crystallographic and magnetic structure of the novel compound ErGe1.83

Authors
Journal
Physica B Condensed Matter
0921-4526
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/s0921-4526(96)01074-5
Keywords
  • Chapter 7. Magnetism
Disciplines
  • Chemistry
  • Physics

Abstract

Abstract The crystal structure and the magnetic ordering of the novel orthorhombic compound ErGe 2−x has been studied by neutron powder diffraction and magnetic measurements. The crystal structure belongs to the DyGe 1.85-type (space group Cmc2 1)·ErGe 2−x ( x = 0.17 (2)) orders antiferromagnetically below T N = 6 K and displays a metamagnetic behaviour. The magnetic cell has the same size as the chemical unit cell ( q = 0 ). The magnetic space group is Cmc2 1 (Sh 36 173). At T = 1.5 K the magnetic moments of the two erbium sites have the same ordered magnetic moment values of 7.63 (6) μ B/Er and are antiferromagnetically coupled leading to an uniaxial structure along the a direction.

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