2002/01/29 by A. A. Ovchinnikov, А. А. Овчинников, Ovchinnikov, A. A. +2
Physics and Astronomy · #Advanced Condensed Matter Physics #FOS: Physical sciences #Physics of Superconductivity and Magnetism #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/0201536
5 pages, 3 figures
arxiv created 2002/01/29 · openalex publication_date 2002/01/29 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The mean field study of bands and the Fermi surfaces (FS's) are carried out for 3-band model of ruthenate. In particular, the lowest spiral state with incommensurate vector Q=2π(1/3,1/3) corresponding to nesting of bands display a set of FS's around electro pockets and shadow sheets along Γ-M lines. The latter may provide a new interpretation of the dispersionless peaks (so called SS features) observed in photoemission. For spiral state the polarisation asymmetry of the photoemission intensity is revealed. The calculated spin susceptibility for this state describes the low frequency magnetic peak at q=Q observed in neutron scattering.