A note on the limitations of the magnetic axis direction determination by neutron powder diffraction

✍ Scribed by Hagai Shaked

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 172 KB
• Volume: 353
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2004.10.012

✦ Synopsis

Rotation crystal symmetry analysis of the magnetic intensities in neutron powder diffraction from magnetically ordered, collinear structures is performed. This analysis, making no reference to a specific crystal system, leads to the well-known limitations on the direction of magnetic axis determination by neutron powder diffraction. It shows that due to the second-order dependence of the magnetic intensity on the magnetic axis components, these limitations result solely from the crystal rotation symmetry in the magnetically ordered state.