1999/06/29 by Roderich Moessner, R. Moessner, A. J. Berlinsky · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Multiferroics and related materials #Physics of Superconductivity and Magnetism #cond-mat.dis-nn #cond-mat.mtrl-sci #cond-mat.stat-mech
paper · pdf · doi:10.1103/physrevlett.83.3293
published as Phys. Rev. Lett. 83, 3293 (1999) · 4 pages, Latex, 4 postscript figures automatically included
arxiv created 1999/06/29 · openalex publication_date 1999/10/18 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We investigate the magnetic susceptibility of the classical Heisenberg antiferromagnet with nearest-neighbor interactions on the geometrically frustrated pyrochlore lattice, for a pure system and in the presence of dilution with nonmagnetic ions. Using the fact that the correlation length in this system for small dilution is always short, we obtain an approximate but accurate expression for the magnetic susceptibility at all temperatures. We extend this theory to the compound SrCr_9\ensuremath-9xGa3+9xO19 and provide an explanation of the phenomenological model recently proposed by Schiffer and Daruka [Phys. Rev. B 56, 13 712 (1997)].