Inversion-symmetry breaking in the noncollinear magnetic phase of the triangular-lattice antiferromagnetCuFeO2

2005/10/26 by T. Kimura, J. C. Lashley, A. P. Ramirez · 13 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Multiferroics and related materials #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.73.220401

15 pages

arxiv created 2005/10/26 · openalex publication_date 2006/06/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Magnetoelectric and magnetoelastic phenomena have been investigated on a frustrated triangular antiferromagnetic lattice in CuFeO₂. Inversion-symmetry breaking, manifested as a finite electric polarization, was observed in noncollinear (helical) magnetic phases and not in collinear magnetic phases. This result demonstrates that the noncollinear spin structure plays an important role in inducing electric polarization. Based on these results we suggest that frustrated magnets (often favoring noncollinear configurations) are favorable candidates for a new class of magnetoelectric materials.

Citations

• Magnetically Driven Ferroelectric Order inNi3V2O8
• Revival of the magnetoelectric effect
• Anisotropic Superexchange Interaction and Weak Ferromagnetism

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