2002/07/10 by J. van Duijn, B. D. Gaulin, van Duijn, J. +5
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #Statistical Mechanics (cond-mat.stat-mech) #Theoretical and Computational Physics #cond-mat.mtrl-sci #cond-mat.stat-mech
paper · pdf · doi:10.48550/arxiv.cond-mat/0207271
4 pages, 4 figures
arxiv created 2002/07/10 · openalex publication_date 2002/07/10 · arxiv updated 2009/11/30 · openalex created_date 2022/08/31 · openalex updated_date 2026/07/28
Critical neutron scattering measurements have been performed on\nCsCo0.83Mg0.17Br3, a dilute stacked triangular lattice (STL) Ising\nantiferromagnet (AF). A two component lineshape associated with the critical\nfluctuations appears at a temperature coincident with TN1 observed in pure\nCsCoBr3. Such scattering is indicative of fluctuations in prototypical\nrandom field Ising model (RFIM) systems. The random field domain state arises\nin this case due to geometrical frustration within the STL Ising AF, which\ngives rise to a 3 sublattice Neel state, in which one sublattice is disordered.\nMagnetic vacancies nucleate AF domains in which the vacancies reside on the\ndisordered sublattice thereby generating a RFIM state in the absence of an\napplied magnetic field.\n