Journal article
Critical properties of highly frustrated pyrochlore antiferromagnets
Abstract
The pyrochlore form of FeF3 (pyr-FeF3) exhibits an unusual noncoplanar form of long-range magnetic order below 16 K. This is a result of the topological frustration inherent in the lattice of corner-sharing tetrahedra formed by the iron atoms. Neutron-diffraction experiments fix the critical exponent β at 0.18(2), which does not correspond to any known universality class. Monte Carlo simulations on the same lattice with Heisenberg spins confirm …
Authors
Reimers JN; Greedan JE; Björgvinsson M
Journal
Physical Review B, Vol. 45, No. 13, pp. 7295–7306
Publisher
American Physical Society (APS)
Publication Date
April 1, 1992
DOI
10.1103/physrevb.45.7295
ISSN
2469-9950