2014/04/04 by Satoru Hayami, Hiroaki Kusunose, Yukitoshi Motome · 142 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Antisymmetric relation #Condensed matter physics #Lattice (music) #Magnetic and transport properties of perovskites and related materials #Mathematical physics #Multiferroics #Multiferroics and related materials #Order (exchange) #Physics #Plasma #Point reflection #Quantum mechanics #Toroid #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.90.024432
published in Physical Review B 90(2) (American Physical Society) · 13 pages, 10 figures
arxiv created 2014/04/04 · openalex publication_date 2014/07/31 · arxiv updated 2014/08/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The hallmark of the toroidal order T in solids is the presence of the cross-coupling term T\ensuremath⋅(H\ifmmode×\else\texttimes\fiE) in the free energy of the system that leads to antisymmetric magneto-electric effect. In the last several years toroidal order has attracted interest in connection with multiferroic insulating materials. The authors of this manuscript show that such an exotic order can occur even in metallic systems on lattice structures where the spatial-inversion symmetry is preserved globally but broken intrinsically at each magnetic site. They suggest a uranium compound UNi4B as a candidate material where such a state can be realized.