Magnetic short-range order in β-Mn(1-x)Co(x)

We present a study of the magnetic ground state properties of β-Mn metal alloyed with Co, using neutron polarization analysis of the diffuse neutron scattering cross-section. We analyse the magnetic structure obtained using a reverse Monte Carlo procedure to extract the Mn-Mn spin correlations. The...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2009-03, Vol.21 (12), p.124216-124216
Main Authors: Stewart, J R, Cywinski, R
Format: Article
Language:English
Online Access:Get full text
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Summary:We present a study of the magnetic ground state properties of β-Mn metal alloyed with Co, using neutron polarization analysis of the diffuse neutron scattering cross-section. We analyse the magnetic structure obtained using a reverse Monte Carlo procedure to extract the Mn-Mn spin correlations. The addition of Co leads to a static disordered magnetic structure with medium-range correlations. Our analysis of the spin correlations indicates that both 8c and 12d non-equivalent lattice sites present in the β-Mn structure contribute to the magnetic ground state, where previously it was thought that the 8c site was non-magnetic.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/21/12/124216