The Role of Correlations in the Magnetic Moment of MnSi

2009/05/25 by Robert D. Collyer, D. A. Browne, Collyer, Robert D. +2
Materials Science · Physics and Astronomy · #Advanced Chemical Physics Studies #FOS: Physical sciences #Magnetic Properties of Alloys #Magnetic properties of thin films #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el

paper · pdf · doi:10.48550/arxiv.0905.4061

7 pages, 6 figures, 2 tables; rewritten per referees comments

openalex publication_date 2009/05/25 · arxiv created 2009/10/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We explored the anomalously low moment in MnSi found by experiment (~0.4 μ_B/Mn) vs the moment predicted by density functional theory (~1.0 μ_B/Mn). With the addition of a Hubbard-U correction, we found several solutions with lower moments. These lower moment solutions show an unusual magnetic order and a magnetic quadrupole moment. The behavior of the moment under pressure does not follow the experimental trend.

Citations

• Classical Electrodynamics

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