2011/05/19 by Travis E. Redpath, John M. Hopkinson, John Hopkinson +7
Physics and Astronomy · #Advanced Condensed Matter Physics #FOS: Physical sciences #Strongly Correlated Electrons (cond-mat.str-el) #Theoretical and Computational Physics #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.1105.3974
8 pages, 5 figures
arxiv created 2011/05/19 · openalex publication_date 2011/05/19 · arxiv updated 2011/05/23 · openalex created_date 2022/09/30 · openalex updated_date 2026/07/28
Motivated by recent experimental work on FeCrAs, we study the magnetic\nproperties of classical spin models on the hexagonal Fe2P/ZrNiAl structure\n(space group P\62m). When both transition metal/rare earth sites carry\nmagnetic moments, one has alternating distorted kagome and triangular lattice\nlayers. Each point of the triangular lattice lies at the centre of a distorted\nhexagon and actually corresponds to three isolated magnetic atoms: a "trimer".\nWe show that a simple model consisting of antiferromagnetically correlated\nHeisenberg spins on the frustrated distorted kagome lattice coupling either\nferromagnetically or antiferromagnetically to Heisenberg spins at the average\nposition of a trimer, leads to a rich phase diagram, including the possible\nselection of a (1/3,1/3,0) magnetic order as may have been seen in FeCrAs.\n