2008/06/19 by Tetsuya Takimoto · 2 citations
Chemistry · Physics and Astronomy · #Advanced NMR Techniques and Applications #Condensed matter physics #Invariant (physics) #Momentum (technical analysis) #Neutron scattering #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Rare-earth and actinide compounds #Scattering #Spin (aerodynamics) #Tetragonal crystal system #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1143/jpsj.77.113706
4 pages, 1 table, 4 figures
arxiv created 2008/06/19 · openalex publication_date 2008/10/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We examine static spin susceptibilities χαβ(\bf q) of spin components Sα and Sβ in the non-centrosymmetric tetragonal system. These show anomalous momentum dependences like χxx(\bf q)-χyy(\bf q)∼ qx2-qy2 and χxy(\bf q)+χyx(\bf q)∼ qx qy, which vanish in centrosymmetric systems. The magnitudes of the anomalous spin susceptibilities are enhanced by the on-site Coulomb interaction, especially, around an ordering wave vector. The significant and anomalous momentum dependences of these susceptibilities are explained by a group theoretical analysis. As the direct probe of the anomalous spin susceptibility, we propose a polarized neutron scattering experiment.