Article ID Journal Published Year Pages File Type
1595087 Solid State Communications 2008 5 Pages PDF
Abstract

The crystal and magnetic structures of orthorhombic, perovskite-type LuMnO3 are described on the basis of neutron powder diffraction data; space group Pbnm, a=5.19865(14)Å, b=5.78853(15)Å, and c=7.2970(2)Å at 298 K. There is a strong cooperative Jahn–Teller (JT) distortion of the MnO6-octahedra resulting in orbital ordering and EE-type antiferromagnetic order below TN∼40TN∼40 K. The magnetic propagation wave vector is commensurate k=b∗/2 at 8 K and no indications of any magnetic phase transitions are seen in susceptibility data. The ordered magnetic moment for Mn is 3.4μB.

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Physical Sciences and Engineering Materials Science Materials Science (General)
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