Emergent frustration in Co-doped β-Mn

Joseph A.M. Paddison, J. Ross Stewart, Pascal Manuel, Pierre Courtois, Garry J. McIntyre, Brian D. Rainford, Andrew L. Goodwin

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

We investigate low-temperature spin correlations in the metallic frustrated magnet β-Mn1-xCox. Single-crystal polarized-neutron scattering experiments reveal the persistence of highly structured magnetic diffuse scattering and the absence of periodic magnetic order to T=0.05 K. We employ reverse Monte Carlo refinements and mean-field theory calculations to construct an effective Hamiltonian which accounts for the magnetic scattering. The interactions we identify describe an emergent spin structure which mimics the triangular lattice antiferromagnet, one of the canonical models of frustrated magnetism.

Original languageEnglish
Article number267207
JournalPhysical Review Letters
Volume110
Issue number26
DOIs
StatePublished - Jun 28 2013
Externally publishedYes

Funding

FundersFunder number
Seventh Framework Programme279705
Engineering and Physical Sciences Research CouncilEP/G004528/2

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